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Hello,
I have successfully deployed a flask web app on Azure using the GitHub repository with App Service Plan (B2: 3). When I click on the browse button it shows an Application Error page. On the diagnostic page, it shows a Container Crash error: Application Errors that may have caused the container to crash were detected.
And the App logs listed this error ImportError: cannot import name 'Markup' from 'jinja2'
My flask app used the PostgreSQL database, I have followed this tutorial Deploy a Python Django or Flask web app with PostgreSQL - Azure App Service | Microsoft Learn.
Anyone has suggestions I am struggling with this for two weeks!
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Same error here.
I solved this error in localhost. By changing the import statement inside the virtual environment files of the jinja2 module. But here in Azure, I could not get the location of the files for the App. The error shows the path in (/tmp/<some id num>/antenv/lib/python3.8/site-packages/jinja2/init.py)
I fixed the error by adding jinja2==3.0.3 and werkzeug==2.0.3 in the requirements.txt. I used Flask old version. Its dependencies were broken. You can check container log for the error details.
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i am using flask==0.10.1 what jinja and werkzeug version will i have to install???