GAE Error When Trying To Run App via Dispatch File - google-app-engine

Question

Trying to run my app using the dispatch file like so:
$ dev_appserver.py dispatch.yaml app1/app.yaml app2/app.yaml
gives me the following error:
Traceback (most recent call last):
File "/Users/usera/google-cloud-sdk/platform/google_appengine/dev_appserver.py", line 101, in <module>
_run_file(__file__, globals())
File "/Users/usera/google-cloud-sdk/platform/google_appengine/dev_appserver.py", line 97, in _run_file
execfile(_PATHS.script_file(script_name), globals_)
File "/Users/usera/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 1041, in <module>
main()
File "/Users/usera/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 1037, in main
dev_server.stop()
File "/Users/usera/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 845, in stop
metrics.GetMetricsLogger().Stop()
File "/Users/usera/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/metrics.py", line 117, in Stop
total_run_time = int((Now() - self._start_time).total_seconds())
TypeError: unsupported operand type(s) for -: 'datetime.datetime' and 'NoneType'
I'm using the latest gcloud installation from here. Each service/module (e.g. app1/app2 in the command above) is written in go.
Content of my dispatch file:
application: my-app
– url: “*/app2/*”
module: app2
– url: “*/app1/*”
module: app1
My python version is 2.7 of course. Any ideas?

Answer 1

I just ran into this problem too, and I believe the issue is dev_appserver requires a default module to route requests which don't match any dispatch rules.
I was able to define a default module by removing the service attribute from the app.yaml for my default module, and removing the dispatch rule for that module.
In your case, remove the service attribute from app1/app.yaml (if present), and remove the dispatch rule which points to app1 in dispatch.yaml.
Hope this helps!