I am using an open-srouce code from Google for an app called MyTracks.
I am getting this error when the original app is installed on the phone.
INSTA
You maybe compile same library or including libraries. For example :
compile 'com.google.android.gms:play-services:8.1.0'
compile 'com.google.android.gms:play-services-ads:8.1.0'
compile 'com.google.android.gms:play-services-identity:8.1.0'
compile 'com.google.android.gms:play-services-gcm:8.1.0'
Above code, google play services (first line ) includes all other services .