"No resource identifier found for attribute 'showAsAction' in package 'android'"
If you are building with Eclipse, make sure your project's build target is set to Honeycomb too.
remove android:showAsAction="never"
from res/menu
folder from every xml file.
all above fix may not work in android studio .if you are using ANDROID STUDIO...... use this fix
add
xmlns:compat="http://schemas.android.com/tools"
in menu tag instead of
xmlns:compat="http://schemas.android.com/apk/res-auto"
in menu tag.