cypress.config.ts does not work with ESM: "exports is not defined in ES module scope"

[nwalters512]

Current behavior

I would expect Cypress to work out of the box with TypeScript and ESM:

• "type": "module" in package.json

• The following tsconfig.json:

  {
    "compilerOptions": {
      "target": "ESNext",
      "module": "NodeNext",
      "moduleResolution": "NodeNext"
    }
  }

• The following cypress.config.ts:

  import { defineConfig } from 'cypress';
  
  export default defineConfig({});

However, with that setup, Cypress currently fails with the following error:

Your configFile is invalid: /Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts

It threw an error when required, check the stack trace below:

ReferenceError: exports is not defined in ES module scope
    at file:///Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts:2:23
    at ModuleJob.run (node:internal/modules/esm/module_job:185:25)
    at async Promise.all (index 0)
    at async ESMLoader.import (node:internal/modules/esm/loader:281:24)
    at async importModuleDynamicallyWrapper (node:internal/vm/module:437:15)
    at async loadFile (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:106:14)
    at async EventEmitter.<anonymous> (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:116:32)

Desired behavior

Cypress should work with this setup.

Test code to reproduce

Clone https://github.com/nwalters512/cypress-esm-typescript-config, then run yarn && yarn cypress. Observe the following error message:

Cypress Version

10.6.0

Node version

16.13.0

Operating System

macOS 12.5

Debug Logs

cypress:cli:cli cli starts with arguments ["/Users/nathan/.nvm/versions/node/v16.13.0/bin/node","/Users/nathan/git/cypress-esm-typescript-config/node_modules/.bin/cypress","run"] +0ms
  cypress:cli NODE_OPTIONS is not set +0ms
  cypress:cli:cli program parsing arguments +1ms
  cypress:cli:cli running Cypress with args [ Command { _events: [Object: null prototype] { 'option:browser': [Function (anonymous)], 'option:ci-build-id': [Function (anonymous)], 'option:component': [Function (anonymous)], 'option:config': [Function (anonymous)], 'option:config-file': [Function (anonymous)], 'option:e2e': [Function (anonymous)], 'option:env': [Function (anonymous)], 'option:group': [Function (anonymous)], 'option:key': [Function (anonymous)], 'option:headed': [Function (anonymous)], 'option:headless': [Function (anonymous)], 'option:no-exit': [Function (anonymous)], 'option:parallel': [Function (anonymous)], 'option:port': [Function (anonymous)], 'option:project': [Function (anonymous)], 'option:quiet': [Function (anonymous)], 'option:record': [Function (anonymous)], 'option:reporter': [Function (anonymous)], 'option:reporter-options': [Function (anonymous)], 'option:spec': [Function (anonymous)], 'option:tag': [Function (anonymous)], 'option:dev': [Function (anonymous)] }, _eventsCount: 22, _maxListeners: undefined, commands: [], options: [ [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option] ], parent: Command { _events: [Object: null prototype], _eventsCount: 1, _maxListeners: undefined, commands: [Array], options: [Array], parent: null, _allowUnknownOption: false, _args: [], rawArgs: [Array], _scriptPath: '/Users/nathan/git/cypress-esm-typescript-config/node_modules/.bin/cypress', _name: 'cypress', _optionValues: {}, _storeOptionsAsProperties: true, _passCommandToAction: true, _actionResults: [], _actionHandler: null, _executableHandler: false, _executableFile: null, _defaultCommandName: null, _exitCallback: null, _aliases: [], _hidden: false, _helpFlags: '-h, --help', _helpDescription: 'display help for command', _helpShortFlag: '-h', _helpLongFlag: '--help', _hasImplicitHelpCommand: undefined, _helpCommandName: 'help', _helpCommandnameAndArgs: 'help [command]', _helpCommandDescription: 'display help for command', _usage: '<command> [options]', args: [Array], [Symbol(kCapture)]: false }, _allowUnknownOption: false, _args: [], rawArgs: null, _scriptPath: null, _name: 'run', _optionValues: {}, _storeOptionsAsProperties: true, _passCommandToAction: true, _actionResults: [], _actionHandler: [Function: listener], _executableHandler: false, _executableFile: null, _defaultCommandName: null, _exitCallback: null, _aliases: [], _hidden: false, _helpFlags: '-h, --help', _helpDescription: 'display help for command', _helpShortFlag: '-h', _helpLongFlag: '--help', _hasImplicitHelpCommand: 0, _helpCommandName: 'help', _helpCommandnameAndArgs: 'help [command]', _helpCommandDescription: 'display help for command', _usage: '[options]', _description: 'Runs Cypress tests from the CLI without the GUI', _argsDescription: undefined, exit: true, args: [], [Symbol(kCapture)]: false } ] +0ms
  cypress:cli:cli variable-length opts parsed { args: [ '/Users/nathan/.nvm/versions/node/v16.13.0/bin/node', '/Users/nathan/git/cypress-esm-typescript-config/node_modules/.bin/cypress', 'run' ], opts: Command { _events: [Object: null prototype] { 'option:browser': [Function (anonymous)], 'option:ci-build-id': [Function (anonymous)], 'option:component': [Function (anonymous)], 'option:config': [Function (anonymous)], 'option:config-file': [Function (anonymous)], 'option:e2e': [Function (anonymous)], 'option:env': [Function (anonymous)], 'option:group': [Function (anonymous)], 'option:key': [Function (anonymous)], 'option:headed': [Function (anonymous)], 'option:headless': [Function (anonymous)], 'option:no-exit': [Function (anonymous)], 'option:parallel': [Function (anonymous)], 'option:port': [Function (anonymous)], 'option:project': [Function (anonymous)], 'option:quiet': [Function (anonymous)], 'option:record': [Function (anonymous)], 'option:reporter': [Function (anonymous)], 'option:reporter-options': [Function (anonymous)], 'option:spec': [Function (anonymous)], 'option:tag': [Function (anonymous)], 'option:dev': [Function (anonymous)] }, _eventsCount: 22, _maxListeners: undefined, commands: [], options: [ [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option], [Option] ], parent: Command { _events: [Object: null prototype], _eventsCount: 1, _maxListeners: undefined, commands: [Array], options: [Array], parent: null, _allowUnknownOption: false, _args: [], rawArgs: [Array], _scriptPath: '/Users/nathan/git/cypress-esm-typescript-config/node_modules/.bin/cypress', _name: 'cypress', _optionValues: {}, _storeOptionsAsProperties: true, _passCommandToAction: true, _actionResults: [], _actionHandler: null, _executableHandler: false, _executableFile: null, _defaultCommandName: null, _exitCallback: null, _aliases: [], _hidden: false, _helpFlags: '-h, --help', _helpDescription: 'display help for command', _helpShortFlag: '-h', _helpLongFlag: '--help', _hasImplicitHelpCommand: undefined, _helpCommandName: 'help', _helpCommandnameAndArgs: 'help [command]', _helpCommandDescription: 'display help for command', _usage: '<command> [options]', args: [Array], [Symbol(kCapture)]: false }, _allowUnknownOption: false, _args: [], rawArgs: null, _scriptPath: null, _name: 'run', _optionValues: {}, _storeOptionsAsProperties: true, _passCommandToAction: true, _actionResults: [], _actionHandler: [Function: listener], _executableHandler: false, _executableFile: null, _defaultCommandName: null, _exitCallback: null, _aliases: [], _hidden: false, _helpFlags: '-h, --help', _helpDescription: 'display help for command', _helpShortFlag: '-h', _helpLongFlag: '--help', _hasImplicitHelpCommand: 0, _helpCommandName: 'help', _helpCommandnameAndArgs: 'help [command]', _helpCommandDescription: 'display help for command', _usage: '[options]', _description: 'Runs Cypress tests from the CLI without the GUI', _argsDescription: undefined, exit: true, args: [], [Symbol(kCapture)]: false } } +44ms
  cypress:cli parsed cli options {} +46ms
  cypress:cli verifying Cypress app +0ms
  cypress:cli checking environment variables +0ms
  cypress:cli checking if executable exists /Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/MacOS/Cypress +2ms
  cypress:cli Binary is executable? : true +1ms
  cypress:cli binaryDir is  /Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app +0ms
  cypress:cli Reading binary package.json from: /Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/package.json +0ms
  cypress:cli Found binary version 10.6.0 installed in: /Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app +2ms
  cypress:cli { verified: true } +1ms
  cypress:cli is Verified ? true +1ms
  cypress:cli:run processing run options { key: null, spec: null, reporter: null, reporterOptions: null, project: '/Users/nathan/git/cypress-esm-typescript-config' } +0ms
  cypress:cli:run --key is not set, looking up environment variable CYPRESS_RECORD_KEY +0ms
  cypress:cli:run run to spawn.start args ["--run-project","/Users/nathan/git/cypress-esm-typescript-config"] +0ms
  cypress:cli needs to start own Xvfb? false +0ms
  cypress:cli spawning, should retry on display problem? false +0ms
  cypress:cli spawn args [ '--no-sandbox', '--', '--run-project', '/Users/nathan/git/cypress-esm-typescript-config', '--cwd', '/Users/nathan/git/cypress-esm-typescript-config', '--userNodePath', '/Users/nathan/.nvm/versions/node/v16.13.0/bin/node', '--userNodeVersion', '16.13.0' ] { detached: false, stdio: [ 'inherit', 'inherit', 'pipe' ] } +4ms
  cypress:cli spawning Cypress with executable: /Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/MacOS/Cypress +0ms
  cypress:cli piping child STDERR to process STDERR +3ms
  cypress:ts registering ts-node on directory undefined +0ms
  cypress:ts Running without ts-node hook in environment "production" +30ms
  cypress:server:appdata path: /Users/nathan/Library/Application Support/Cypress/cy/production/cache +0ms
  cypress:server:appdata path: /Users/nathan/Library/Application Support/Cypress/cy/production/browsers +25ms
  cypress:server:cypress starting cypress with argv [ '/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/MacOS/Cypress', '--no-sandbox', '--', '--run-project', '/Users/nathan/git/cypress-esm-typescript-config', '--cwd', '/Users/nathan/git/cypress-esm-typescript-config', '--userNodePath', '/Users/nathan/.nvm/versions/node/v16.13.0/bin/node', '--userNodeVersion', '16.13.0' ] +0ms
  cypress:server:args argv array: [ '/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/MacOS/Cypress', '--no-sandbox', '--run-project', '/Users/nathan/git/cypress-esm-typescript-config', '--cwd', '/Users/nathan/git/cypress-esm-typescript-config', '--userNodePath', '/Users/nathan/.nvm/versions/node/v16.13.0/bin/node', '--userNodeVersion', '16.13.0' ] +0ms
  cypress:server:args parsed argv options { options: { _: [ '/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/MacOS/Cypress' ], sandbox: false, 'run-project': '/Users/nathan/git/cypress-esm-typescript-config', runProject: '/Users/nathan/git/cypress-esm-typescript-config', cwd: '/Users/nathan/git/cypress-esm-typescript-config', userNodePath: '/Users/nathan/.nvm/versions/node/v16.13.0/bin/node', userNodeVersion: '16.13.0' } } +1ms
  cypress:server:args argv parsed: { _: [ '/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/MacOS/Cypress' ], sandbox: false, runProject: '/Users/nathan/git/cypress-esm-typescript-config', cwd: '/Users/nathan/git/cypress-esm-typescript-config', userNodePath: '/Users/nathan/.nvm/versions/node/v16.13.0/bin/node', userNodeVersion: '16.13.0', invokedFromCli: true } +1ms
  cypress:server:util:proxy found proxy environment variables {} +0ms
  cypress:server:args options { _: [ '/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/MacOS/Cypress' ], sandbox: false, runProject: '/Users/nathan/git/cypress-esm-typescript-config', cwd: '/Users/nathan/git/cypress-esm-typescript-config', userNodePath: '/Users/nathan/.nvm/versions/node/v16.13.0/bin/node', userNodeVersion: '16.13.0', invokedFromCli: true, config: {} } +1ms
  cypress:server:args argv options: { _: [ '/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/MacOS/Cypress' ], sandbox: false, runProject: '/Users/nathan/git/cypress-esm-typescript-config', cwd: '/Users/nathan/git/cypress-esm-typescript-config', userNodePath: '/Users/nathan/.nvm/versions/node/v16.13.0/bin/node', userNodeVersion: '16.13.0', invokedFromCli: true, config: {}, projectRoot: '/Users/nathan/git/cypress-esm-typescript-config' } +0ms
  cypress:server:cypress from argv [ '/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/MacOS/Cypress', '--no-sandbox', '--run-project', '/Users/nathan/git/cypress-esm-typescript-config', '--cwd', '/Users/nathan/git/cypress-esm-typescript-config', '--userNodePath', '/Users/nathan/.nvm/versions/node/v16.13.0/bin/node', '--userNodeVersion', '16.13.0' ] got options { _: [ '/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/MacOS/Cypress' ], sandbox: false, runProject: '/Users/nathan/git/cypress-esm-typescript-config', cwd: '/Users/nathan/git/cypress-esm-typescript-config', userNodePath: '/Users/nathan/.nvm/versions/node/v16.13.0/bin/node', userNodeVersion: '16.13.0', invokedFromCli: true, config: {}, projectRoot: '/Users/nathan/git/cypress-esm-typescript-config' } +4ms
  cypress:server:cypress scaling electron app in headless mode +0ms
  cypress:server:appdata path: /Users/nathan/Library/Application Support/Cypress/cy/production +25ms
  cypress:server:cypress starting in mode run with options { _: [ '/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/MacOS/Cypress' ], sandbox: false, runProject: '/Users/nathan/git/cypress-esm-typescript-config', cwd: '/Users/nathan/git/cypress-esm-typescript-config', userNodePath: '/Users/nathan/.nvm/versions/node/v16.13.0/bin/node', userNodeVersion: '16.13.0', invokedFromCli: true, config: {}, projectRoot: '/Users/nathan/git/cypress-esm-typescript-config' } +44ms
  cypress:server:cypress running Electron currently +0ms
  cypress:graphql:nexusDeferIfNotLoadedPlugin Adding nexusDeferIfNotLoadedPlugin for Query.cloudLatestRunUpdateSpecData +0ms
  cypress:graphql:nexusDeferIfNotLoadedPlugin Adding nexusDeferIfNotLoadedPlugin for Query.cloudProjectBySlug +0ms
  cypress:graphql:nexusDeferIfNotLoadedPlugin Adding nexusDeferIfNotLoadedPlugin for Query.cloudProjectsBySlugs +0ms
  cypress:graphql:nexusDeferIfNotLoadedPlugin Adding nexusDeferIfNotLoadedPlugin for Query.cloudSpecByPath +0ms
  cypress:graphql:nexusDeferIfNotLoadedPlugin Adding nexusDeferIfNotLoadedPlugin for Query.cloudViewer +0ms
  cypress:graphql:nexusDeferIfNotLoadedPlugin Adding nexusDeferIfNotLoadedPlugin for Query.versions +0ms
  cypress:graphql:nexusDeferIfNotLoadedPlugin Adding nexusDeferIfNotLoadedPlugin for CurrentProject.cloudProject +1ms
  cypress:graphql:nexusDeferIfNotLoadedPlugin Adding nexusDeferIfNotLoadedPlugin for RemoteFetchableCloudProjectResult.data +2ms
  cypress:graphql:nexusDeferIfNotLoadedPlugin Adding nexusDeferIfNotLoadedPlugin for RemoteFetchableCloudProjectSpecResult.data +0ms
  cypress:server:browsers:utils getBrowsers +0ms
  cypress:launcher:detect detecting if the following browsers are present [ { name: 'chrome', family: 'chromium', channel: 'stable', displayName: 'Chrome', versionRegex: /Google Chrome (\S+)/m, binary: [ 'google-chrome', 'chrome', 'google-chrome-stable' ], minSupportedVersion: 64 }, { name: 'chromium', family: 'chromium', channel: 'stable', displayName: 'Chromium', versionRegex: /Chromium (\S+)/m, binary: [ 'chromium-browser', 'chromium' ], minSupportedVersion: 64 }, { name: 'chrome', family: 'chromium', channel: 'beta', displayName: 'Chrome Beta', versionRegex: /Google Chrome (\S+) beta/m, binary: 'google-chrome-beta', minSupportedVersion: 64 }, { name: 'chrome', family: 'chromium', channel: 'canary', displayName: 'Canary', versionRegex: /Google Chrome Canary (\S+)/m, binary: 'google-chrome-canary', minSupportedVersion: 64 }, { name: 'firefox', family: 'firefox', channel: 'stable', displayName: 'Firefox', versionRegex: /^Mozilla Firefox ([^\sab]+)$/m, binary: 'firefox', minSupportedVersion: 86, validator: [Function: validator] }, { name: 'firefox', family: 'firefox', channel: 'dev', displayName: 'Firefox Developer Edition', versionRegex: /^Mozilla Firefox (\S+b\S*)$/m, binary: [ 'firefox-developer-edition', 'firefox' ], minSupportedVersion: 86 }, { name: 'firefox', family: 'firefox', channel: 'nightly', displayName: 'Firefox Nightly', versionRegex: /^Mozilla Firefox (\S+a\S*)$/m, binary: [ 'firefox-nightly', 'firefox-trunk' ], minSupportedVersion: 86 }, { name: 'edge', family: 'chromium', channel: 'stable', displayName: 'Edge', versionRegex: /Microsoft Edge (\S+)/m, binary: [ 'edge', 'microsoft-edge' ], minSupportedVersion: 79 }, { name: 'edge', family: 'chromium', channel: 'canary', displayName: 'Edge Canary', versionRegex: /Microsoft Edge Canary (\S+)/m, binary: 'edge-canary', minSupportedVersion: 79 }, { name: 'edge', family: 'chromium', channel: 'beta', displayName: 'Edge Beta', versionRegex: /Microsoft Edge Beta (\S+)/m, binary: 'edge-beta', minSupportedVersion: 79 }, { name: 'edge', family: 'chromium', channel: 'dev', displayName: 'Edge Dev', versionRegex: /Microsoft Edge Dev (\S+)/m, binary: [ 'edge-dev', 'microsoft-edge-dev' ], minSupportedVersion: 79 } ] +0ms
  cypress:scaffold-config:detect Detected cypress.config.ts - using TS +0ms
  cypress:server:video using ffmpeg from /Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/node_modules/@ffmpeg-installer/darwin-arm64/ffmpeg +0ms
  cypress:lifecycle:ProjectConfigIpc fork child process { CHILD_PROCESS_FILE_PATH: '/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/require_async_child.js', configProcessArgs: [ '--projectRoot', '/Users/nathan/git/cypress-esm-typescript-config', '--file', '/Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts' ], childOptions: { stdio: 'pipe', cwd: '/Users/nathan/git/cypress-esm-typescript-config', execPath: '/Users/nathan/.nvm/versions/node/v16.13.0/bin/node' } } +0ms
  cypress:lifecycle:ProjectConfigIpc trigger the load of the file +3ms
(node:46444) ExperimentalWarning: --experimental-loader is an experimental feature. This feature could change at any time
(Use `node --trace-warnings ...` to show where the warning was created)
  cypress:server:browsers:utils found browsers { browsers: [ { name: 'chrome', family: 'chromium', channel: 'stable', displayName: 'Chrome', version: '104.0.5112.101', path: '/Applications/Google Chrome.app/Contents/MacOS/Google Chrome', minSupportedVersion: 64, majorVersion: '104' }, { name: 'firefox', family: 'firefox', channel: 'stable', displayName: 'Firefox', version: '103.0.1', path: '/Applications/Firefox.app/Contents/MacOS/firefox', minSupportedVersion: 86, majorVersion: '103' } ] } +161ms
  cypress:server:util:process_profiler current & mean memory and CPU usage by process group:
  cypress:server:util:process_profiler ┌─────────┬───────────┬──────────────┬────────────────┬────────────┬────────────────┬──────────┬──────────────┬─────────────┐
  cypress:server:util:process_profiler │ (index) │   group   │ processCount │      pids      │ cpuPercent │ meanCpuPercent │ memRssMb │ meanMemRssMb │ maxMemRssMb │
  cypress:server:util:process_profiler ├─────────┼───────────┼──────────────┼────────────────┼────────────┼────────────────┼──────────┼──────────────┼─────────────┤
  cypress:server:util:process_profiler │    0    │ 'cypress' │      1       │    '46435'     │   102.3    │     102.3      │  13.19   │    13.19     │    13.19    │
  cypress:server:util:process_profiler │    1    │  'other'  │      2       │ '46438, 46439' │     0      │       0        │   0.39   │     0.39     │    0.39     │
  cypress:server:util:process_profiler │    2    │  'TOTAL'  │      3       │      '-'       │   102.3    │     102.3      │  13.58   │    13.58     │    13.58    │
  cypress:server:util:process_profiler └─────────┴───────────┴──────────────┴────────────────┴────────────┴────────────────┴──────────┴──────────────┴─────────────┘ +0ms
  cypress:lifecycle:child:run_require_async_child:46444 configFile: /Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts +0ms
  cypress:lifecycle:child:run_require_async_child:46444 projectRoot: /Users/nathan/git/cypress-esm-typescript-config +1ms
  cypress:lifecycle:child:run_require_async_child:46444 try loading /Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts +6ms
  cypress:lifecycle:child:run_require_async_child:46444 Loading file /Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts +0ms
  cypress:lifecycle:child:run_require_async_child:46444 User is loading an ESM config file +5ms
  cypress:lifecycle:child:run_require_async_child:46444 importing esm file file:///Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts +0ms
  cypress:lifecycle:child:run_require_async_child:46444 error loading file via native Node.js module loader exports is not defined in ES module scope +29ms
  cypress:lifecycle:ProjectConfigIpc error loading config {
  name: 'Error',
  message: 'Your \x1B[33mconfigFile\x1B[39m is invalid: \x1B[94m/Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts\x1B[39m\n' +
    '\n' +
    'It threw an error when required, check the stack trace below:',
  stack: 'ReferenceError: exports is not defined in ES module scope\n' +
    '    at file:///Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts:2:23\n' +
    '    at ModuleJob.run (node:internal/modules/esm/module_job:185:25)\n' +
    '    at async Promise.all (index 0)\n' +
    '    at async ESMLoader.import (node:internal/modules/esm/loader:281:24)\n' +
    '    at async importModuleDynamicallyWrapper (node:internal/vm/module:437:15)\n' +
    '    at async loadFile (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:106:14)\n' +
    '    at async EventEmitter.<anonymous> (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:116:32)',
  type: 'CONFIG_FILE_REQUIRE_ERROR',
  details: 'ReferenceError: exports is not defined in ES module scope\n' +
    '    at file:///Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts:2:23\n' +
    '    at ModuleJob.run (node:internal/modules/esm/module_job:185:25)\n' +
    '    at async Promise.all (index 0)\n' +
    '    at async ESMLoader.import (node:internal/modules/esm/loader:281:24)\n' +
    '    at async importModuleDynamicallyWrapper (node:internal/vm/module:437:15)\n' +
    '    at async loadFile (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:106:14)\n' +
    '    at async EventEmitter.<anonymous> (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:116:32)',
  isCypressErr: true,
  messageMarkdown: 'Your `configFile` is invalid: `/Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts`\n' +
    '\n' +
    'It threw an error when required, check the stack trace below:',
  originalError: [Object]
} +213ms
  cypress:lifecycle:ProjectConfigManager catch { name: 'Error', message: 'Your \x1B[33mconfigFile\x1B[39m is invalid: \x1B[94m/Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts\x1B[39m\n' + '\n' + 'It threw an error when required, check the stack trace below:', stack: 'ReferenceError: exports is not defined in ES module scope\n' + '    at file:///Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts:2:23\n' + '    at ModuleJob.run (node:internal/modules/esm/module_job:185:25)\n' + '    at async Promise.all (index 0)\n' + '    at async ESMLoader.import (node:internal/modules/esm/loader:281:24)\n' + '    at async importModuleDynamicallyWrapper (node:internal/vm/module:437:15)\n' + '    at async loadFile (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:106:14)\n' + '    at async EventEmitter.<anonymous> (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:116:32)', type: 'CONFIG_FILE_REQUIRE_ERROR', details: 'ReferenceError: exports is not defined in ES module scope\n' + '    at file:///Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts:2:23\n' + '    at ModuleJob.run (node:internal/modules/esm/module_job:185:25)\n' + '    at async Promise.all (index 0)\n' + '    at async ESMLoader.import (node:internal/modules/esm/loader:281:24)\n' + '    at async importModuleDynamicallyWrapper (node:internal/vm/module:437:15)\n' + '    at async loadFile (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:106:14)\n' + '    at async EventEmitter.<anonymous> (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:116:32)', isCypressErr: true, messageMarkdown: 'Your `configFile` is invalid: `/Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts`\n' + '\n' + 'It threw an error when required, check the stack trace below:', originalError: { name: 'ReferenceError', message: 'exports is not defined in ES module scope', stack: 'ReferenceError: exports is not defined in ES module scope\n' + '    at file:///Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts:2:23\n' + '    at ModuleJob.run (node:internal/modules/esm/module_job:185:25)\n' + '    at async Promise.all (index 0)\n' + '    at async ESMLoader.import (node:internal/modules/esm/loader:281:24)\n' + '    at async importModuleDynamicallyWrapper (node:internal/vm/module:437:15)\n' + '    at async loadFile (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:106:14)\n' + '    at async EventEmitter.<anonymous> (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:116:32)' } } +0ms
  cypress:lifecycle:ProjectConfigManager catch { name: 'Error', message: 'Your \x1B[33mconfigFile\x1B[39m is invalid: \x1B[94m/Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts\x1B[39m\n' + '\n' + 'It threw an error when required, check the stack trace below:', stack: 'ReferenceError: exports is not defined in ES module scope\n' + '    at file:///Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts:2:23\n' + '    at ModuleJob.run (node:internal/modules/esm/module_job:185:25)\n' + '    at async Promise.all (index 0)\n' + '    at async ESMLoader.import (node:internal/modules/esm/loader:281:24)\n' + '    at async importModuleDynamicallyWrapper (node:internal/vm/module:437:15)\n' + '    at async loadFile (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:106:14)\n' + '    at async EventEmitter.<anonymous> (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:116:32)', type: 'CONFIG_FILE_REQUIRE_ERROR', details: 'ReferenceError: exports is not defined in ES module scope\n' + '    at file:///Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts:2:23\n' + '    at ModuleJob.run (node:internal/modules/esm/module_job:185:25)\n' + '    at async Promise.all (index 0)\n' + '    at async ESMLoader.import (node:internal/modules/esm/loader:281:24)\n' + '    at async importModuleDynamicallyWrapper (node:internal/vm/module:437:15)\n' + '    at async loadFile (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:106:14)\n' + '    at async EventEmitter.<anonymous> (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:116:32)', isCypressErr: true, messageMarkdown: 'Your `configFile` is invalid: `/Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts`\n' + '\n' + 'It threw an error when required, check the stack trace below:', originalError: { name: 'ReferenceError', message: 'exports is not defined in ES module scope', stack: 'ReferenceError: exports is not defined in ES module scope\n' + '    at file:///Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts:2:23\n' + '    at ModuleJob.run (node:internal/modules/esm/module_job:185:25)\n' + '    at async Promise.all (index 0)\n' + '    at async ESMLoader.import (node:internal/modules/esm/loader:281:24)\n' + '    at async importModuleDynamicallyWrapper (node:internal/vm/module:437:15)\n' + '    at async loadFile (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:106:14)\n' + '    at async EventEmitter.<anonymous> (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:116:32)' } } +1ms
  cypress:server:cypress exiting with err {
  name: 'Error',
  message: 'Your \x1B[33mconfigFile\x1B[39m is invalid: \x1B[94m/Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts\x1B[39m\n' +
    '\n' +
    'It threw an error when required, check the stack trace below:',
  stack: 'ReferenceError: exports is not defined in ES module scope\n' +
    '    at file:///Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts:2:23\n' +
    '    at ModuleJob.run (node:internal/modules/esm/module_job:185:25)\n' +
    '    at async Promise.all (index 0)\n' +
    '    at async ESMLoader.import (node:internal/modules/esm/loader:281:24)\n' +
    '    at async importModuleDynamicallyWrapper (node:internal/vm/module:437:15)\n' +
    '    at async loadFile (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:106:14)\n' +
    '    at async EventEmitter.<anonymous> (/Users/nathan/Library/CacheYour configFile is invalid: /Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts

It threw an error when required, check the stack trace below:

ReferenceError: exports is not defined in ES module scope
    at file:///Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts:2:23
    at ModuleJob.run (node:internal/modules/esm/module_job:185:25)
    at async Promise.all (index 0)
    at async ESMLoader.import (node:internal/modules/esm/loader:281:24)
    at async importModuleDynamicallyWrapper (node:internal/vm/module:437:15)
    at async loadFile (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:106:14)
    at async EventEmitter.<anonymous> (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:116:32)
s/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:116:32)',
  type: 'CONFIG_FILE_REQUIRE_ERROR',
  details: 'ReferenceError: exports is not defined in ES module scope\n' +
    '    at file:///Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts:2:23\n' +
    '    at ModuleJob.run (node:internal/modules/esm/module_job:185:25)\n' +
    '    at async Promise.all (index 0)\n' +
    '    at async ESMLoader.import (node:internal/modules/esm/loader:281:24)\n' +
    '    at async importModuleDynamicallyWrapper (node:internal/vm/module:437:15)\n' +
    '    at async loadFile (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:106:14)\n' +
    '    at async EventEmitter.<anonymous> (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:116:32)',
  isCypressErr: true,
  messageMarkdown: 'Your `configFile` is invalid: `/Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts`\n' +
    '\n' +
    'It threw an error when required, check the stack trace below:',
  originalError: {
    name: 'ReferenceError',
    message: 'exports is not defined in ES module scope',
    stack: 'ReferenceError: exports is not defined in ES module scope\n' +
      '    at file:///Users/nathan/git/cypress-esm-typescript-config/cypress.config.ts:2:23\n' +
      '    at ModuleJob.run (node:internal/modules/esm/module_job:185:25)\n' +
      '    at async Promise.all (index 0)\n' +
      '    at async ESMLoader.import (node:internal/modules/esm/loader:281:24)\n' +
      '    at async importModuleDynamicallyWrapper (node:internal/vm/module:437:15)\n' +
      '    at async loadFile (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:106:14)\n' +
      '    at async EventEmitter.<anonymous> (/Users/nathan/Library/Caches/Cypress/10.6.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_require_async_child.js:116:32)'
  }
} +576ms
  cypress:server:cypress calling exit 1 +1ms
  cypress:server:cypress about to exit with code 1 +0ms
  cypress:server:browsers browsers.kill called with no active instance +0ms
  cypress:proxy:http:util:prerequests metrics: { browserPreRequestsReceived: 0, proxyRequestsReceived: 0, immediatelyMatchedRequests: 0, unmatchedRequests: 0, unmatchedPreRequests: 0 } +0ms
  cypress:cli child event fired { event: 'exit', code: 1, signal: null } +1s
  cypress:cli child event fired { event: 'close', code: 1, signal: null } +1ms

[lmiller1990]

I'd expect this to work, too. We should fix this. Thanks for the excellent bug report.

[lmiller1990]

Actually fixed by #23637 - just tested it out. Going to close this one off, it'll be in the next release.

Adding a quick test: #23695

[oliviervanbulck]

I get this during the installation of cypress, with the created config file.

[lmiller1990]

Can you share a minimal reproduction? It's likely a configuration error - the error isn't very insightful, but I can help you fix it once I know your setup.

[lmiller1990]

@oliviervanbulck (or anyone else coming here) you might want to also see #24111 which has some common solutions to this issue (usually type=module conflicting with the defaults in tsconfig.json).

[floroz]

Can't share a reproduction, but I am also having the issue of a newly installed cypress not working if "type":"module" is set in package.json

Running Node both 18.14, tried 16.19 and "cypress": "^12.7.0"

[floroz]

Can't share a reproduction, but I am also having the issue of a newly installed cypress not working if "type":"module" is set in package.json

Running Node both 18.14, tried 16.19 and "cypress": "^12.7.0"

I can confirm that

• removing "type":"module"
• or converting cypress.config.ts to cypress.config.js

Resolve the issue