Null pointer lytProgressBar

[rakeshrajput537]

Fatal Exception: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.FrameLayout.setVisibility(int)' on a null object reference
at com.anilokcun.uwmediapicker.ui.activity.UwMediaPickerDialogFragment$onGalleryMediaBucketClick$1.invokeSuspend(UwMediaPickerDialogFragment.kt:289)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:104)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loopOnce(Looper.java:226)
at android.os.Looper.loop(Looper.java:313)
at android.app.ActivityThread.main(ActivityThread.java:8669)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:571)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1135)