Android project won't build when editing a resource file

Question

I have an Android 1.5 project in Eclipse and whenever I merely have an xml resource file open the build dies with an error. E.g. if I have the res\\layout\\main.xml

Answer 1

To configure the run button to always run the previously launched application:

Eclipse -> Window -> Preferences -> Run/Debug -> Launching -> Launch Operation -> Always Launch the previously launched application