Show NullPointerException

[patugosavi]

java.lang.NullPointerException: Attempt to invoke virtual method 'void com.tr4android.support.extension.drawable.ColorTransitionDrawable.setColorRatio(float)' on a null object reference

I have use updated version of android studio Android Studio Dolphin 2021.3.1 Patch 1.

Android studio previous version is proper work but after update show anytime NullPointerException.

[taltstidl]

I am not actively using or maintaining this library anymore and pretty busy these days, so I'm afraid I won't be able to help. Anyone else having this issue who could provide a potential solution?

[joao-moniz]

I'm having the same problem with screen rotation

java.lang.NullPointerException: Attempt to invoke virtual method 'void com.tr4android.support.extension.drawable.ColorTransitionDrawable.setColorRatio(float)' on a null object reference
at com.tr4android.support.extension.widget.FloatingActionMenu.onRestoreInstanceState(FloatingActionMenu.java:687)