Error inflating stepper on API level 21 (Android 5.0)

[roozbehzarei]

The stepper is working fine while testing on API 32, but on API 21 it gives the following error:

android.view.InflateException: Binary XML file line #7: Error inflating class com.aceinteract.android.stepper.StepperNavigationView
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Caused by: java.lang.reflect.InvocationTargetException
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Caused by: java.lang.NoSuchMethodError: No virtual method setTextAppearance(I)V in class Landroid/widget/TextView; or its super classes (declaration of 'android.widget.TextView' appears in /system/framework/framework.jar:classes2.dex)