Actionbar Sherlock IllegalStateException Exception

If your app just force closed with the following exception,

02-19 13:19:55.663: D/AndroidRuntime(759): Shutting down VM
02-19 13:19:55.663: W/dalvikvm(759): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
02-19 13:19:55.674: E/AndroidRuntime(759): FATAL EXCEPTION: main
02-19 13:19:55.674: E/AndroidRuntime(759): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.code2care.tools.example/com.code2care.tools.example.MainActivity}: java.lang.IllegalStateException: You must use Theme.Sherlock, Theme.Sherlock.Light, Theme.Sherlock.Light.DarkActionBar, or a derivative.
02-19 13:19:55.674: E/AndroidRuntime(759): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
02-19 13:19:55.674: E/AndroidRuntime(759): 	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
02-19 13:19:55.674: E/AndroidRuntime(759): 	at android.app.ActivityThread.access$2300(ActivityThread.java:125)
02-19 13:19:55.674: E/AndroidRuntime(759): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
02-19 13:19:55.674: E/AndroidRuntime(759): 	at android.os.Handler.dispatchMessage(Handler.java:99)
02-19 13:19:55.674: E/AndroidRuntime(759): 	at android.os.Looper.loop(Looper.java:123)
02-19 13:19:55.674: E/AndroidRuntime(759): 	at android.app.ActivityThread.main(ActivityThread.java:4627)
02-19 13:19:55.674: E/AndroidRuntime(759): 	at java.lang.reflect.Method.invokeNative(Native Method)
02-19 13:19:55.674: E/AndroidRuntime(759): 	at java.lang.reflect.Method.invoke(Method.java:521)
02-19 13:19:55.674: E/AndroidRuntime(759): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
02-19 13:19:55.674: E/AndroidRuntime(759): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
02-19 13:19:55.674: E/AndroidRuntime(759): 	at dalvik.system.NativeStart.main(Native Method)
02-19 13:19:55.674: E/AndroidRuntime(759): Caused by: java.lang.IllegalStateException: You must use Theme.Sherlock, Theme.Sherlock.Light, Theme.Sherlock.Light.DarkActionBar, or a derivative.
02-19 13:19:55.674: E/AndroidRuntime(759): 	at com.actionbarsherlock.internal.ActionBarSherlockCompat.generateLayout(ActionBarSherlockCompat.java:976)
02-19 13:19:55.674: E/AndroidRuntime(759): 	at com.actionbarsherlock.internal.ActionBarSherlockCompat.installDecor(ActionBarSherlockCompat.java:902)
02-19 13:19:55.674: E/AndroidRuntime(759): 	at com.actionbarsherlock.internal.ActionBarSherlockCompat.setContentView(ActionBarSherlockCompat.java:836)
02-19 13:19:55.674: E/AndroidRuntime(759): 	at com.actionbarsherlock.app.SherlockActivity.setContentView(SherlockActivity.java:229)
02-19 13:19:55.674: E/AndroidRuntime(759): 	at com.code2care.tools.bmicalculatorpro.MainActivity.onCreate(MainActivity.java:32)
02-19 13:19:55.674: E/AndroidRuntime(759): 	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
02-19 13:19:55.674: E/AndroidRuntime(759): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
02-19 13:19:55.674: E/AndroidRuntime(759): 	... 11 more

When you read the stack trace, you see the cause of the error is,

"You must use Theme.Sherlock, Theme.Sherlock.Light"

That is , we need to set a sherlock theme for the activity in the Manifest file.

By default the Application theme is set as AppTheme, just change it theme options available with ActionBar Sherlock Theme.Sherlock.Light.DarkActionBar














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