Unknown animation name: objectAnimator

Unknown animation name: objectAnimator
at android.view.animation.AnimationUtils.createAnimationFromXml(AnimationUtils.java:128)
at android.view.animation.AnimationUtils.createAnimationFromXml(AnimationUtils.java:118)
at android.view.animation.AnimationUtils.createAnimationFromXml(AnimationUtils.java:118)
at android.view.animation.AnimationUtils.createAnimationFromXml(AnimationUtils.java:95)
at android.view.animation.AnimationUtils.loadAnimation(AnimationUtils.java:76)
at com.mancj.materialsearchbar.MaterialSearchBar.enableSearch(MaterialSearchBar.java:467)
at com.mancj.materialsearchbar.MaterialSearchBar.onClick(MaterialSearchBar.java:906)
at android.view.View.performClick(View.java:5610)
at android.view.View$PerformClick.run(View.java:22265)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756)

Start by reproducing the crash when search is enabled, then inspect MaterialSearchBar.java at enableSearch (line 467) and the click path at onClick (line 906). Done means enabling the search bar no longer raises the reported unknown animation name error.