i am using terminal [not eclipse]. i got following exception error, while i use emulator.debug successfully and installd successfully. But emulator show
emulator.debug
If you are using Android Studio then its quick easier, Please add compile 'com.android.support:cardview-v7:21.+' in dependencies in build.gradle.
dependencies { compile 'com.android.support:cardview-v7:21.+' }