java.lang.RuntimeException

Unable to start activity ComponentInfo{com.example.jorgenajera.myapplication/com.mikepenz.aboutlibraries.ui.LibsActivity}: 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.

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  • via Stack Overflow by Shayan D
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  • via GitHub by MisterY
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  • Stack trace

    • java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.jorgenajera.myapplication/com.mikepenz.aboutlibraries.ui.LibsActivity}: 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.app.ActivityThread.performLaunchActivity(ActivityThread.java:2450) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2510)

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