Error: The file/path provided (flaskr) does not appear to exist. Please verify the path is correct. If app is not on PYTHONPATH, ensure the extension is .py

Make sure the file/path provided (flaskr) exists and is correct. If the app is not on the PYTHONPATH, ensure the extension of the file is .py. Here is an example of how to address this error:

  1. Verify the file/path: Check that the file or directory named "flaskr" exists in the location specified. Double-check the spelling and capitalization of the file/path.

  2. PYTHONPATH: If the app is not on the PYTHONPATH, you need to ensure that it is added to the path. The PYTHONPATH is an environment variable that tells Python where to look for modules and packages. To check the PYTHONPATH, you can run the following command in the terminal: echo $PYTHONPATH

If the output is empty or does not include the path to your app, you will need to add it. You can do this by modifying the PYTHONPATH environment variable using the export command. For example: export PYTHONPATH=/path/to/your/app:$PYTHONPATH

Replace "/path/to/your/app" with the actual path to your app.

  1. File extension: Ensure that the file you are trying to run has a ".py" extension. Flask applications typically have a file named "app.py" or "flaskr.py". If the file does not have a ".py" extension, you may encounter the error mentioned.

By following these steps, you should be able to resolve the error "The file/path provided (flaskr) does not appear to exist. Please verify the path is correct. If app is not on PYTHONPATH, ensure the extension is .py." Let me know if you need further assistance!