When opening an image, activity crashes

[basic-steve]

When click on image activity crashes
02-12 17:04:48.202 7382-7382/mn.cdr.du.farnext E/AndroidRuntime: FATAL EXCEPTION: main Process: mn.cdr.du.farnext, PID: 7382 java.lang.NullPointerException: Attempt to invoke interface method 'java.lang.String java.lang.CharSequence.toString()' on a null object reference at com.mzelzoghbi.zgallery.activities.ZGridActivity.onClick(ZGridActivity.java:56) at com.mzelzoghbi.zgallery.adapters.GridImagesAdapter$1.onClick(GridImagesAdapter.java:46) at android.view.View.performClick(View.java:6294) at android.view.View$PerformClick.run(View.java:24770) at android.os.Handler.handleCallback(Handler.java:790) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:164) at android.app.ActivityThread.main(ActivityThread.java:6494) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:440) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)

I have used this code https://github.com/mzelzoghbi/ZGallery#grid-list-builder inside a onclick listener

[localleon]

Same Error Here

Im facing this Error too, im using Android Studio 3.0.1.
The Sample Code with the DummyImageList produces the same error. Im calling the methode via onClick from XML.

[UniqueJoy]

me also having same issue.. activity crashes onclick image