Fixing "ModuleNotFoundError: No module named 'flask'"

[dominikschubert]

Due to a recent change in our packaging, you might notice the following exception in your logs when starting LocalStack with an Extension.

ModuleNotFoundError: No module named 'flask'

To fix this simply:

• clear the directory that is mounted into the LocalStack container at /var/lib/localstack
• pull the latest image
• restart the LocalStack container
• re-install any extensions you were using if you're not using EXTENSION_AUTO_INSTALL