java.lang.RuntimeException

Unable to start activity ComponentInfo{com.extodigital.calculator/com.extodigital.calculator.Calculator}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.

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  • Stack trace

    • java.lang.RuntimeException: Unable to start activity ComponentInfo{com.extodigital.calculator/com.extodigital.calculator.Calculator}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity. at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2298) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360) at android.app.ActivityThread.access$800(ActivityThread.java:144) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5221) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694) Caused by: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity. at android.support.v7.app.ActionBarActivityDelegate.onCreate(ActionBarActivityDelegate.java:151) at android.support.v7.app.ActionBarActivityDelegateBase.onCreate(ActionBarActivityDelegateBase.java:138) at android.support.v7.app.ActionBarActivity.onCreate(ActionBarActivity.java:123) at com.extodigital.calculator.Calculator.onCreate(Calculator.java:21) at android.app.Activity.performCreate(Activity.java:5933) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251) ... 10 more

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