IsolateSpawnException:

[CyberhashPlatform]

$ aqueduct serve
-- Aqueduct CLI Version: 3.0.0-beta.1
-- Aqueduct project version: 3.0.0-beta.1
-- Preparing...
*** Uncaught error
IsolateSpawnException: Unable to spawn isolate: file:///Users/user/.pub-cache/hosted/pub.dartlang.org/path-1.6.0/lib/src/path_set.dart:76:32: Error: The method 'retype' isn't defined for the class 'dart.core::Setdart.core::String'.
Try correcting the name to the name of an existing method, or defining a method named 'retype'.
Set retype() => _inner.retype();
^
**** Stacktrace

• #0 Isolate.spawnUri (dart:isolate/runtime/libisolate_patch.dart:450:14)
• Build authentication adapter #1 IsolateExecutor.execute (package:isolate_executor/src/executor.dart:59:23)
• Ensure application startup completes across isolates #2 IsolateExecutor.executeWithType (package:isolate_executor/src/executor.dart:95:21)
• Documentation for application, controllers, router #3 CLIServer.deriveApplicationLibraryDetails (package:aqueduct/src/cli/commands/serve.dart:170:40)
• Allow resource controller endpoints to take query params as optional arguments #4 CLIServer.prepare (package:aqueduct/src/cli/commands/serve.dart:190:32)
• Ensure that path parameters from the router are parsed into the type the handler expects #5 CLIServer.handle (package:aqueduct/src/cli/commands/serve.dart:78:11)
• Create API documentation intermediate file format #6 CLICommand.process (package:aqueduct/src/cli/command.dart:156:20)
• Integrate code coverage tool for tests #7 CLICommand.process (package:aqueduct/src/cli/command.dart:132:48)
• Create Postman file from intermediate documentation #8 main (file:///Users/user/Desktop/Development/Dart/aqueduct_projects/aqueduct/aqueduct/bin/aqueduct.dart:9:27)
• Create Swagger API specification generated from intermediate format #9 _startIsolate. (dart:isolate/runtime/libisolate_patch.dart:277:32)
• Write guide for monadart  #10 _RawReceivePortImpl._handleMessage (dart:isolate/runtime/libisolate_patch.dart:165:12)

[itsjoeconway]

Run ‘pub upgrade’, looks like your path package version is not compatible with dart 2.

Additionally, Dart 2 support is in progress. Dev builds 64 and 65 have blocking issues for aqueduct.

[CyberhashPlatform]

Thanks for the feedback. 'pub upgrade' worked. I'm new to Aqueduct so I figured I might as well learn the latest version even if it's not production ready.

[itsjoeconway]

👍