[Solved] Android Studio API 22 gives an error Unfortunately, “App Name” has stopped working after successful build [duplicate]

Question

Try removing the android prefix in <item name="android:windowNoTitle">true</item> i.e replace it with <item name="windowNoTitle">true</item>.

Also replace <style name="MyMaterialTheme.Base" parent="Theme.AppCompat.Light.DarkActionBar"> with <style name="MyMaterialTheme.Base" parent="Theme.AppCompat"> , the Light.DarkActionBar part is unnecessary as you are specifying windowActionbar as false and windowNoTitle as true and setting action bar in activity.

Also one more thing, ActionBarActivity is deprecated in revision 22.1.0 of the Support Library and so AppCompatActivity should be used instead of ActionBarActivity. This has nothing to do with issue, but is just a suggestion.

Hope this will help you resolve the issue as all other parts of your code look ok.

Accepted Answer

Try removing the android prefix in <item name="android:windowNoTitle">true</item> i.e replace it with <item name="windowNoTitle">true</item>.

Also replace <style name="MyMaterialTheme.Base" parent="Theme.AppCompat.Light.DarkActionBar"> with <style name="MyMaterialTheme.Base" parent="Theme.AppCompat"> , the Light.DarkActionBar part is unnecessary as you are specifying windowActionbar as false and windowNoTitle as true and setting action bar in activity.

Also one more thing, ActionBarActivity is deprecated in revision 22.1.0 of the Support Library and so AppCompatActivity should be used instead of ActionBarActivity. This has nothing to do with issue, but is just a suggestion.

Hope this will help you resolve the issue as all other parts of your code look ok.