Browse - Programming Tips - "R cannot be resolved to a variable" - why?

Date: 2017apr12
OS: Android
Keywords: Eclipse

Q.  "R cannot be resolved to a variable" - why?
I did a Clean and now Eclipse is not rebuilding R.

A.  You almost certainly have a mistake in your XML files.
For example once I got this error because a menu was referring to
a @string/example which didn't exist.  It should have been flagged as an error
but wasn't.  I'd suggest slowly backing out recently XML changes.