I have exactly the same issue. However I'm sorry to say that but I also tried everything possible and it never disappeared. In the end I had to use another computer. You can see the thread I made here for some ideas, let me know if you manage to fix it.
https://groups.google.com/forum/#!topicsearchin/google-appengine/unknown$2Bprotocol/google-appengine/F7NHx7duGoc Le vendredi 19 décembre 2014 16:27:57 UTC+1, Oğuzhan Aydın a écrit : > > Hello everyone, > > I'm new at Google Cloud and im preparing web app program. But when i > create new Google app on Eclipse, it occurs a problem as in the below. > > "There was a problem generating the API metadata for your Cloud Endpoints > classes: unknown protocol: c" > > Error from Google App Engine Cloud Endpoints Problem Marker. > > I searched all forums but i couldnt find cool solution. I need help as > soon as possible. Thank you. > -- 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 http://groups.google.com/group/google-appengine. For more options, visit https://groups.google.com/d/optout.
