java.lang.IllegalStateException

This Activity already has an action bar supplied by the window decor. Do not request Window.FEATURE_SUPPORT_ACTION_BAR and set windowActionBar to false in your theme to use a Toolbar instead. at android.support.v7.app.AppCompatDelegateImplV7.setSupportActionBar(AppCompatDele gateImplV7.java:198) at android.support.v7.app.AppCompatActivity.setSupportActionBar(AppCompatActivity.java:130)

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    • java.lang.IllegalStateException: This Activity already has an action bar supplied by the window decor. Do not request Window.FEATURE_SUPPORT_ACTION_BAR and set windowActionBar to false in your theme to use a Toolbar instead. at android.support.v7.app.AppCompatDelegateImplV7.setSupportActionBar(AppCompatDele gateImplV7.java:198) at android.support.v7.app.AppCompatActivity.setSupportActionBar(AppCompatActivity.java:130) at com.asoft.admin.anto_tab.MainActivity.onCreate(MainActivity.java:25) at android.app.Activity.performCreate(Activity.java:6237) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)

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