问题
I just signed up for 'C2DM' and created an 'Appengine connected Android Project'. After starting the Android Project, when I try to add my Account comes an error after the Server Settings: "Unable to open connection to Server". Is this error coming up, because my C2DM account hasn't been released yet?
回答1:
What target are you using? If you're using the AOSP (Android) 2.2 or above, you need to switch to using the Google API level 8 instead. This will allow you to use a (required) google account.
Edit: Let me clarify in that it's the emulator that needs to be running Google vs Android target, not the build target of the app.
回答2:
Google Api 8 Emulator will give no problem. Worked for me. in Eclipse.. Menu > Windows > Avd Manager > Create a new AVD with google api 8 . Make sure to change the run configurations of project too...
来源：https://stackoverflow.com/questions/6254073/appengine-connected-android-project-add-account