Error:java.lang.IllegalArgumentException: The style on this component requires your app theme to be Theme.MaterialComponents (or a descendant). at com.google.android.material.internal.ThemeEnforcement.checkTheme(ThemeEnforcement.java:240) at com.google.android.material.internal.ThemeEnforcement.checkMaterialTheme(ThemeEnforcement.java:215) at com.google.android.material.internal.ThemeEnforcement.checkCompatibleTheme(ThemeEnforcement.java:143) at com.google.android.material.internal.ThemeEnforcement.obtainStyledAttributes(ThemeEnforcement.java:78) at com.google.android.material.chip.ChipDrawable.loadFromAttributes(ChipDrawable.java:359) at com.google.android.material.chip.ChipDrawable.createFromAttributes(ChipDrawable.java:292) at com.google.android.material.chip.Chip.(Chip.java:193) at com.google.android.material.chip.Chip.(Chip.java:186) at com.google.android.material.chip.Chip.(Chip.java:182) at com.demo.nspl.restaurantlite.Navigation_Drawer.SalesFragment.getFilterChip(SalesFragment.java:158) at com.demo.nspl.restaurantlite.Navigation_Drawer.SalesFragment.lambda$onCreateView$0(SalesFragment.java:71) at com.demo.nspl.restaurantlite.Navigation_Drawer.-$$Lambda$SalesFragment$KCm-iiczjdYbpiNmaNw12gtFOoQ.onClick(lambda) at android.view.View.performClick(View.java:5268) at android.view.View$PerformClick.run(View.java:21550) at android.os.Handler.handleCallback(Handler.java:822) at android.os.Handler.dispatchMessage(Handler.java:104) at android.os.Looper.loop(Looper.java:207) at android.app.ActivityThread.main(ActivityThread.java:5811) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:681)

The Error while importing AndroidX or while using Chip or ChipGroup.

1) Solution:-

2) Solution:- 

      1) GOTO To styles.xml:-

       Change Theme.AppCompat.Light.DarkActionBar         to Theme.MaterialComponents.Light.DarkActionBar 

As Shown in Image Below:-