no resource found that matches the given name
Did you check to ensure that you have the string resource defined in res/values/strings.xml?
<string name="app_name">"My App"</string>Sometimes, I've noticed eclipse will also throw errors that are hard to track if you have any .xml files with errors. I don't think the parser recovers well and sometimes the errors you get can be misleading.
One Reason Can Be as in my case a bug in the string GUI when you add and delete items in some sequence
solution:simply open the strings.xml in the XML mode not GUI you will find it different and has obvious not valid extra texts pasted around or at the beginning ; although it does not give an error on the file strings.xml fix them and then clean and run