I\'ve implemented a simple GCM client and server. The client uses the current GCM client APIs (not the deprecated helper library). The server (C# & .NET) follows the cor
I don't see the manifest entries above, but I ran into the exact issue a few days ago, the manifest package must match the C2D_MESSAGE permission package.
ie.
...
In my case the declared package did not match in order to provide an upgrade path for a previous version of the application.