Fatal error: java.lang.NoClassDefFoundError: Failed resolution of: Lcom/nineoldandroids/view/ViewHelper;

[Informatheus]

When i try to use this lib I get this:

E/AndroidRuntime: FATAL EXCEPTION: main Process: com.informatheus.quantoporlitro, PID: 7059 java.lang.NoClassDefFoundError: Failed resolution of: Lcom/nineoldandroids/view/ViewHelper; at com.gc.materialdesign.views.ButtonFloat$1.run(ButtonFloat.java:111) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5466) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) Caused by: java.lang.ClassNotFoundException: Didn't find class "com.nineoldandroids.view.ViewHelper" on path: DexPathList[[dex file "/data/data/com.informatheus.quantoporlitro/files/instant-run/dex/slice-support-annotations-23.3.0_ebf31ba6a53a34df7d3dac487bc345dd7dd9e309-classes.dex"

What should I do?

[LuisException]

same error here.

[andersonbadari]

same...

[FarzadJM]

Add 'com.nineoldandroids:library:2.4.0' to your dependencies

[andinirachm]

Have you try to unactive instant run? I tried and it solved