Failed to resolve: com.android.support:support-v4:22.0

[johnAsa]

hi, i added this library to my project and get this problem, compile 'com.android.support:support-v4:22.0' i tried to fix that with this code: compile 'com.android.support:support-v4:22.0.0' but not worked and get this problem: Error:(30, 26) error: package R does not exist !!!!!!!!!!!! please help me

[xjh1994]

@johnAsa May be you need to change your compileSdkVersion . Mine is 26 and that solved my problem.