as the title suggest, I\'m getting that error in at least 3 of the XML layout files, however, I dont see the attritube \"showsAsAction\" in any of those XML files, did I miss so
Are you sure you are looking in the right *.xml file? You seem to look for "showAsAction" in layout xmls, but it's parameter for the menu. Look rather into .../menu/your_activity.xml
The problem you are dealing with is connected with using target less than 4.0 and/or API less than 14.
So,
a) change those parameters,
b) change the value of showAsAction from "never" to "ifRoom".