I have been trying to deploy my Plotly-Dash app to Heroku using Heroku Git (git push heroku master) but it’s not working. My dash is a multi-page application called “sales-dash-analytics”, with the following structure: app.py index.py Procfile Data (folder) requirements.txt runtime.txt venv .gitig…

[image] MinhChau96: Failed to parse 'app.server' as an attribute name or function call. Hi, See if this links helps: [image] Error with Gunicorn Dash Python Unfortunately, this syntax was broken in the latest version of gunicorn (or never officially supported in th…

Hi @Eduardo , thank you for your reply. I followed your link and from my understanding you need to add server = app.server to index.py. I tried doing this but was still getting the same erro.

Hi MinhChau96 , I deployed my app following the docs guide https://dash.plotly.com/deployment then I replaced the example app for my app and had no errors. The difference I can see between the example and your files is that you are including a runtime.txt file that is not speciffy in the docs and a…

For more info see this very extensive work done by dan_baker [image] Deploying your Dash app to Heroku - THE MAGICAL GUIDE Dash Python So you have your Dash app running on your local machine and you’re finally ready to share it with the world on a public site. The problem…

Hi @MinhChau96 and @Eduardo Min I think I’ve found your problem, and it’s the PROCFILE! If your main python file is app.py , then your PROCFILE for heroku should be exactly: web: gunicorn app:server Where: ‘web:’ tells Heroku the dyno main process is a web process ‘gunicorn’ tells heroku tha…

Hi @Eduardo and @dan_baker thank you so much for both your help. I changed the content of my Procfile to web: gunicorn index:server and added server = app.server and from app import app, server to index.py and the deployment finally works! Thank you again for your time and help I really appreciate …

Glad to hear that it works :smiley: I have only acted as a facilitator :+1:

Deploy Dash to Heroku error “Failed to parse 'app.server' as an attribute name or function call”

Dash Python

Eduardo December 6, 2020, 2:03am 2

Hi,
See if this links helps:

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Deploy Dash to Heroku error “Failed to parse 'app.server' as an attribute name or function call”

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