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

[Eduardo]

@MinhChau96

Failed to parse 'app.server' as an attribute name or function call.

Hi,
See if this links helps:

Error with Gunicorn

Unfortunately, this syntax was broken in the latest version of gunicorn (or never officially supported in the first place) - potential regression: failed to parse WSGI callable as attribute of object · Issue #2213 · benoitc/gunicorn · GitHub So, now you have to create a variable named server inside app.py rather than referring to it as app.server. That is, include: app = dash.Dash(__name__) server = app.server