Flask app built successfully but failed to deploy

1

I am currently trying to deploy my flask app on render using its web service. It is a dynamic app that needs update from Firebase. However I am facing the problem where there the build was successful but the deploying phase failed. It says gunicorn app:app command not found, but I do have it in my requirements.txt, with the version 20.1.0. Therefore I’d like help on this

Mar 12 05:07:14 PM  ==> Cloning from https://github.com/Flov9/website-for-DGA-tools...
Mar 12 05:07:15 PM  ==> Checking out commit 9e99659909d9ad5953a11213153079b214948b30 in branch main
Mar 12 05:07:19 PM  ==> Using Python version: 3.7.10
Mar 12 05:07:23 PM  ==> Running build command 'find . -regex '.*requirements.txt$''...
Mar 12 05:07:23 PM  ./requirements.txt
Mar 12 05:07:23 PM  ==> Generating container image from build. This may take a few minutes...
Mar 12 05:08:36 PM  ==> Uploading build...
Mar 12 05:09:07 PM  ==> Build uploaded in 25s
Mar 12 05:09:07 PM  ==> Build successful 🎉
Mar 12 05:09:07 PM  ==> Deploying...
Mar 12 05:09:29 PM  ==> Starting service with 'gunicorn app:app'
Mar 12 05:09:29 PM  bash: gunicorn: command not found
Mar 12 05:09:36 PM  ==> Starting service with 'gunicorn app:app'
Mar 12 05:09:36 PM  bash: gunicorn: command not found
Mar 12 05:09:59 PM  ==> Starting service with 'gunicorn app:app'
Mar 12 05:09:59 PM  bash: gunicorn: command not found
Mar 12 05:10:29 PM  ==> Starting service with 'gunicorn app:app'
Mar 12 05:10:29 PM  bash: gunicorn: command not found
Mar 12 05:11:24 PM  ==> Starting service with 'gunicorn app:app'
Mar 12 05:11:24 PM  bash: gunicorn: command not found
2

do you have Gunicorn in your requirements.txt file?
bash: gunicorn: command not found suggests that the shell cannot find gunicorn to run

3

As mentioned, it is indeed in my requirements.txt

Below is the screenshot of it in my github repo:
image

4

Hi,

Your Build Command above doesn’t look right:

Mar 12 05:07:23 PM ==> Running build command 'find . -regex '.*requirements.txt$''

Maybe you want:

pip install -r requirements.txt

Alan

5

Hello Alan,

I’ve tried out that command before and resulted in failed build.

Mar 18 10:24:07 PM  ==> Checking out commit 0efd61cad81bad3c21d4b993dc71201df869fda8 in branch main
Mar 18 10:24:11 PM  ==> Using Python version: 3.7.10
Mar 18 10:24:14 PM  ==> Running build command 'pip install -r requirements.txt'...
Mar 18 10:24:15 PM  Collecting black==23.1.0
Mar 18 10:24:15 PM    Downloading black-23.1.0-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (1.5 MB)
Mar 18 10:24:15 PM  Collecting blinker==1.5
Mar 18 10:24:15 PM    Downloading blinker-1.5-py2.py3-none-any.whl (12 kB)
Mar 18 10:24:15 PM  Collecting certifi==2022.12.7
Mar 18 10:24:15 PM    Downloading certifi-2022.12.7-py3-none-any.whl (155 kB)
Mar 18 10:24:15 PM  Collecting cffi==1.15.1
Mar 18 10:24:15 PM    Downloading cffi-1.15.1-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (427 kB)
Mar 18 10:24:16 PM  Collecting charset-normalizer==3.0.1
Mar 18 10:24:16 PM    Downloading charset_normalizer-3.0.1-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (170 kB)
Mar 18 10:24:16 PM  Collecting click==8.1.3
Mar 18 10:24:16 PM    Downloading click-8.1.3-py3-none-any.whl (96 kB)
Mar 18 10:24:16 PM  Collecting colorama==0.4.6
Mar 18 10:24:16 PM    Downloading colorama-0.4.6-py2.py3-none-any.whl (25 kB)
Mar 18 10:24:16 PM  ERROR: Could not find a version that satisfies the requirement contourpy==1.0.7 (from -r requirements.txt (line 8)) (from versions: 0.0.1, 0.0.2, 0.0.3, 0.0.4, 0.0.5, 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6)
Mar 18 10:24:16 PM  ERROR: No matching distribution found for contourpy==1.0.7 (from -r requirements.txt (line 8))
Mar 18 10:24:16 PM  WARNING: You are using pip version 20.1.1; however, version 23.0.1 is available.
Mar 18 10:24:16 PM  You should consider upgrading via the '/opt/render/project/src/.venv/bin/python -m pip install --upgrade pip' command.
Mar 18 10:24:17 PM  ==> Build failed 😞
Mar 18 10:24:17 PM  ==> Generating container image from build. This may take a few minutes...
6

You need to read those logs more closely:

ERROR: Could not find a version that satisfies the requirement contourpy==1.0.7

Looking at the “contourpy” package on Pypi, it requires Python >=3.8.

Back to the deploy logs above:

==> Using Python version: 3.7.10

Specify your Python version to match the one you developed on.

Alan

7

Apology for not seeing the simplest and the most obvious thing in front of me.
Successfully deployed, appreciate it much.

8

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.