Error when uploading a file from Android

[noisecapella]

I usually upload a photo shared using the Camera app. This time I tried to upload a photo which was saved to the phone beforehand. I am able to get the cropper to make a selection but when uploading it, it fails to replace the image. We should show some kind of error message for these cases, and we should fix whatever is the root cause here. From heroku logs:

2016-12-07T20:54:26.155892+00:00 app[web.1]: An exception was intercepted by custom_exception_handler
2016-12-07T20:54:26.155898+00:00 app[web.1]: Traceback (most recent call last):
2016-12-07T20:54:26.155899+00:00 app[web.1]:   File "/app/.heroku/python/lib/python3.5/site-packages/rest_framework/views.py", line 474, in dispatch
2016-12-07T20:54:26.155900+00:00 app[web.1]:     response = handler(request, *args, **kwargs)
2016-12-07T20:54:26.155903+00:00 app[web.1]:   File "/app/.heroku/python/lib/python3.5/site-packages/rest_framework/mixins.py", line 85, in partial_update
2016-12-07T20:54:26.155903+00:00 app[web.1]:     return self.update(request, *args, **kwargs)
2016-12-07T20:54:26.155904+00:00 app[web.1]:   File "/app/.heroku/python/lib/python3.5/site-packages/rest_framework/mixins.py", line 69, in update
2016-12-07T20:54:26.155905+00:00 app[web.1]:     serializer.is_valid(raise_exception=True)
2016-12-07T20:54:26.155906+00:00 app[web.1]:   File "/app/.heroku/python/lib/python3.5/site-packages/rest_framework/serializers.py", line 244, in is_valid
2016-12-07T20:54:26.155906+00:00 app[web.1]:     raise ValidationError(self.errors)
2016-12-07T20:54:26.155911+00:00 app[web.1]: rest_framework.exceptions.ValidationError: {'image': ['The submitted data was not a file. Check the encoding type on the form.']}

[alicewriteswrongs]

how reliably does this happen? could you try out the PR build for my resizing change and see if it repros there?

its here: https://micromasters-ci-pr-2004.herokuapp.com/

[noisecapella]

It seems to happen when I just upload the image and don't touch the cropper. I'll try the pr build

[noisecapella]

When I do this from that PR build it clears the image entirely: