Moodle for mobile

moodle apk doesn't work

 
Picture of behnaz ranjbar
Re: moodle apk doesn't work
 
i wanna add this error too that i saw in logcat but i don't how important it is:
07-26 12:54:50.491 21415-22601/com.moodle.moodlemobile E/AndroidRuntime: FATAL EXCEPTION: pool-2-thread-3
    Process: com.moodle.moodlemobile, PID: 21415
    java.lang.IllegalAccessError: Method 'void android.support.v4.content.ContextCompat.<init>()' is inaccessible to class 'com.google.android.gms.iid.zzd' (declaration of 'com.google.android.gms.iid.zzd' appears in /data/app/com.moodle.moodlemobile-1/base.apk)

 
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