java.lang.NoClassDefFoundError: com.google.android.gms.gcm.GoogleCloudMessaging after ADT update

问题

I'm getting this error:

07-16 13:56:12.341: E/AndroidRuntime(23287): java.lang.NoClassDefFoundError: com.google.android.gms.gcm.GoogleCloudMessaging

after I updated ADT last week. The code:

public GCMRegisterTask(Context acontext) {
    this.context = acontext;
    if (gcm == null) {
        gcm = GoogleCloudMessaging.getInstance(context);
    }
}

The project doesn't show any compilation error, but when I try to debug this in my phone(Android 4.2, I've also tried in one table with Android 4.4) this error occurs. I've tried all the workarounds:

The Android Private Libraries export is checked:

I've also tried including only the google-play-services.jar in the libs/ folder and I'm getting the same error.

回答1:

This was the problem:

Android - Could not find google-play-services_lib.apk! error

I removed google-play-services from java build path->Projects and it worked!

来源：https://stackoverflow.com/questions/24789701/java-lang-noclassdeffounderror-com-google-android-gms-gcm-googlecloudmessaging