I have an app where homepage is map.
Do not know why i am getting this error and along with this error Could not find class \'gpr\', referenced from method gps
I had the same issue after upgrading to API Level 23 in July (with client google-play-service_lib 5.0.77).
The issue was resolved after Google Play Service was updated to latest (6.1.09) on the test device.
So, it seems to have been (a device-specific issue) due to incompatibility between the Google Play Service version on the device/emulator and the client library API (google-play-service_lib) in the project.
According to Google's documentation, when the client is newer than the service, the client library API is supposed to resolve out-of-date service apk issues; (and it does in this case since the issue does not really affect released apk's) https://developer.android.com/google/play-services/index.html.
My earlier attempts to resolve this issue by using new API key, and fresh installs of Eclipse/ADT/SDK/google-play-service_lib, as suggested in this and other similar questions did not work.