Hello Piotr, What directory are you in when running this command? You should rather run the dev_appserver.py command as follows from the directory that contains your app's app.yaml configuration file:
dev_appserver.py [PATH_TO_YOUR_APP] Alternatively, you can specify the configuration file of a specific service, for example: dev_appserver.py app.yaml You may find related information in the "Using the Local Development Server" online document <https://cloud.google.com/appengine/docs/standard/python/tools/using-local-server> . -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/d372a3bc-2eae-42c9-824e-08349d439c79%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
