Unable to get provider com.crashlytics.android.CrashlyticsInitProvider java.lang.ClassNotFoundException

E/AndroidRuntime: FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to get provider com.crashlytics.android.CrashlyticsInitProvider: java.lang.ClassNotFoundException: Didn't find class "com.crashlytics.android.CrashlyticsInitProvider" on path: DexPathList[[zip file "/data/app/ir.adp.picassoapp-2.apk"],nativeLibraryDirectories=[/data/app-lib/ir.adp.picassoapp-2, /vendor/lib, /system/lib, /data/datalib]]
at android.app.ActivityThread.installProvider(ActivityThread.java:5184)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:4733)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4666)
at android.app.ActivityThread.access$1300(ActivityThread.java:166)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1439)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:194)
at android.app.ActivityThread.main(ActivityThread.java:5455)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:966)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:733)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.crashlytics.android.CrashlyticsInitProvider" on path: DexPathList[[zip file "/data/app/ir.adp.picassoapp-2.apk"],nativeLibraryDirectories=[/data/app-lib/ir.adp.picassoapp-2, /vendor/lib, /system/lib, /data/datalib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:53)
at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
at android.app.ActivityThread.installProvider(ActivityThread.java:5169)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:4733) 
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4666) 
at android.app.ActivityThread.access$1300(ActivityThread.java:166) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1439) 
at android.os.Handler.dispatchMessage(Handler.java:107) 
at android.os.Looper.loop(Looper.java:194) 
at android.app.ActivityThread.main(ActivityThread.java:5455) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:525) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:966) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:733) 
at dalvik.system.NativeStart.main(Native Method)