android - Package R does not exist Action Bar Sherlock -

i trying set action bar sherlock using intellij. created android module library , attached module dependency in target project. when build error

java: package r not exist

i 100 of these errors.

when looked @ other posts, seemed people using eclipse cleaned project. however, dont see option clean project in intellij. know how fix this?

you have error on xml files, double check them, rebuild project , try again.

after may want check if including right r in imports.