command 'github.codespaces.rebuildEnvironment' not found

[2025fatima]

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Hello, i 've been having a problem with my codespace for a few days. it does not work , when i run a flask it gives 404 error , No web page was found for the web address im sure my code are fine it was working last week , and when i rebuild it it gives command 'github.codespaces.rebuildEnvironment' not found error. i restarted and updated several times even created a new codespace but it didn't work. i have no time for my cs50 project
please help me.

[pjjj23]

Hello, it might be corrupted or misconfigured. If rebuilding and creating a new Codespace didn’t work, check your Flask app's host and port configuration (ensure host='0.0.0.0') and verify that the correct FLASK_APP environment variable is set before running the app.

[2025fatima]

thank you for your information

[glektarssza]

I've run into this multiple times over the last little bit. From what I can tell it seems to be triggered by slow networking conditions causing the in-browser VSCode setup to become corrupted. The solution that continuously works for me is to clear the site data for that Codespace and reload the page. Seems to work every time I've run into the issue so far.

You can do this by pressing F12 to access the developer console, navigating to the Application tab, selecting Storage in the tree menu, and then clicking the Clear site data button. I recommend ensuring the including third-party cookies checkbox is turned on for good measure.

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