Hi. I have an app in appspot using the Course Builder. App worked fine until a few days ago where when I try to add a new Unit I get: 500 Internal Server Error The server has either erred or is incapable of performing the requested operation.
I checked the log files and saw that the error that repeats is AttributeError: 'NoneType' object has no attribute 'lesson_id'get ( /base/data/home/apps/e~sev-exports/20170426t200457.400835856987044385/controllers/lessons.py:139 <https://console.cloud.google.com/debug/fromlog?appModule=default&appVersion=20170427t113542&file=%2Fbase%2Fdata%2Fhome%2Fapps%2Fe~sev-exports%2F20170426t200457.400835856987044385%2Fcontrollers%2Flessons.py&line=139&project=sev-exports> ) RAW shows: Traceback (most recent call last): File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 1535, in __call__ rv = self.handle_exception(request, response, e) File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 1529, in __call__ rv = self.router.dispatch(request, response) File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 1278, in default_dispatcher return route.handler_adapter(request, response) File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 1102, in __call__ return handler.dispatch() File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 572, in dispatch return self.handle_exception(e, self.app.debug) File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 570, in dispatch return method(*args, **kwargs) File "/base/data/home/apps/e~sev-exports/20170426t200457.400835856987044385/controllers/sites.py", line 868, in get handler.get() File "/base/data/home/apps/e~sev-exports/20170426t200457.400835856987044385/controllers/lessons.py", line 139, in get self.template_value['lesson_id'] = lesson.lesson_id AttributeError: 'NoneType' object has no attribute 'lesson_id' Any ideas/solutions? Thanks. -- 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 [email protected]. To post to this group, send email to [email protected]. 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/b5fccf2a-1c04-45ac-a195-dcb2a10d2081%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
