Error after progaurd apply

[farimarwat]

java.lang.NoSuchFieldError
at libcore.reflect.AnnotationAccess.decodeValue(AnnotationAccess.java:688)
at libcore.reflect.AnnotationAccess.getDefaultValue(AnnotationAccess.java:361)
at java.lang.reflect.Method.getDefaultValue(Method.java:327)
at libcore.reflect.AnnotationFactory.getElementsDescription(AnnotationFactory.java:75)
at libcore.reflect.AnnotationFactory.(AnnotationFactory.java:112)
at libcore.reflect.AnnotationFactory.createAnnotation(AnnotationFactory.java:94)
at libcore.reflect.AnnotationAccess.toAnnotationInstance(AnnotationAccess.java:666)
at libcore.reflect.AnnotationAccess.annotationSetToAnnotations(AnnotationAccess.java:633)
at libcore.reflect.AnnotationAccess.getDeclaredAnnotations(AnnotationAccess.java:161)
at java.lang.reflect.Field.getDeclaredAnnotations(Field.java:244)
at com.a.a.c.f.g.a(Unknown Source)
at com.a.a.c.f.g.a(Unknown Source)
at com.a.a.c.f.g.a(Unknown Source)
at com.a.a.c.f.b.n(Unknown Source)
at com.a.a.c.f.b.l(Unknown Source)
at com.a.a.c.f.z.a(Unknown Source)
at com.a.a.c.f.z.m(Unknown Source)
at com.a.a.c.f.z.l(Unknown Source)
at com.a.a.c.f.z.d(Unknown Source)
at com.a.a.c.f.p.w(Unknown Source)
at com.a.a.c.f.p.h(Unknown Source)
at com.a.a.c.c.b.c(Unknown Source)
at com.a.a.c.c.b.b(Unknown Source)
at com.a.a.c.c.b.a(Unknown Source)
at com.a.a.c.c.f.g(Unknown Source)
at com.a.a.c.c.f.d(Unknown Source)
at com.a.a.c.c.n.a(Unknown Source)
at com.a.a.c.c.n.e(Unknown Source)
at com.a.a.c.c.n.d(Unknown Source)
at com.a.a.c.c.n.c(Unknown Source)
at com.a.a.c.c.n.a(Unknown Source)
at com.a.a.c.g.b(Unknown Source)
at com.a.a.c.s.a(Unknown Source)
at com.a.a.c.s.a(Unknown Source)
at com.a.a.c.s.a(Unknown Source)
at com.yausername.youtubedl_android.YoutubeDL.getInfo(Unknown Source)
at com..mcqs.YoutubeplayerActivity.o(Unknown Source)
at com..mcqs.YoutubeplayerActivity.onCreate(Unknown Source)
at android.app.Activity.performCreate(Activity.java:6331)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1113)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2523)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2658)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1492)
at android.os.Handler.dispatchMessage(Handler.java:111)
at android.os.Looper.loop(Looper.java:207)
at android.app.ActivityThread.main(ActivityThread.java:5737)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:679)
Caused by: java.lang.NoSuchFieldException: No field AUTO in class Lcom/a/a/a/u$a; (declaration of 'com.a.a.a.u$a' appears in /data/app/com..-1/base.apk)
at java.lang.Class.getDeclaredField(Native Method)
at libcore.reflect.AnnotationAccess.decodeValue(AnnotationAccess.java:685)
at libcore.reflect.AnnotationAccess.getDefaultValue(AnnotationAccess.java:361) 
at java.lang.reflect.Method.getDefaultValue(Method.java:327) 
at libcore.reflect.AnnotationFactory.getElementsDescription(AnnotationFactory.java:75) 
at libcore.reflect.AnnotationFactory.(AnnotationFactory.java:112) 
at libcore.reflect.AnnotationFactory.createAnnotation(AnnotationFactory.java:94) 
at libcore.reflect.AnnotationAccess.toAnnotationInstance(AnnotationAccess.java:666) 
at libcore.reflect.AnnotationAccess.annotationSetToAnnotations(AnnotationAccess.java:633) 
at libcore.reflect.AnnotationAccess.getDeclaredAnnotations(AnnotationAccess.java:161) 
at java.lang.reflect.Field.getDeclaredAnnotations(Field.java:244) 
at com.a.a.c.f.g.a(Unknown Source) 
at com.a.a.c.f.g.a(Unknown Source) 
at com.a.a.c.f.g.a(Unknown Source) 
at com.a.a.c.f.b.n(Unknown Source) 
at com.a.a.c.f.b.l(Unknown Source) 
at com.a.a.c.f.z.a(Unknown Source) 
at com.a.a.c.f.z.m(Unknown Source) 
at com.a.a.c.f.z.l(Unknown Source) 
at com.a.a.c.f.z.d(Unknown Source) 
at com.a.a.c.f.p.w(Unknown Source) 
at com.a.a.c.f.p.h(Unknown Source) 
at com.a.a.c.c.b.c(Unknown Source) 
at com.a.a.c.c.b.b(Unknown Source) 
at com.a.a.c.c.b.a(Unknown Source) 
at com.a.a.c.c.f.g(Unknown Source) 
at com.a.a.c.c.f.d(Unknown Source) 
at com.a.a.c.c.n.a(Unknown Source) 
at com.a.a.c.c.n.e(Unknown Source) 
at com.a.a.c.c.n.d(Unknown Source) 
at com.a.a.c.c.n.c(Unknown Source) 
at com.a.a.c.c.n.a(Unknown Source) 
at com.a.a.c.g.b(Unknown Source) 
at com.a.a.c.s.a(Unknown Source) 
at com.a.a.c.s.a(Unknown Source) 
at com.a.a.c.s.a(Unknown Source) 
at com.yausername.youtubedl_android.YoutubeDL.getInfo(Unknown Source) 
at com.******.mcqs.YoutubeplayerActivity.o(Unknown Source) 
at com..******mcqs.YoutubeplayerActivity.onCreate(Unknown Source) 
at android.app.Activity.performCreate(Activity.java:6331) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1113) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2523) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2658) 
at android.app.ActivityThread.-wrap11(ActivityThread.java) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1492) 
at android.os.Handler.dispatchMessage(Handler.java:111) 
at android.os.Looper.loop(Looper.java:207) 
at android.app.ActivityThread.main(ActivityThread.java:5737) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:679) 

[farimarwat]

Updated:
Problem Fixed:
Problem was due to this Line:
Caused by: java.lang.NoSuchFieldException: No field AUTO