java ee - project missing fake folder myEclipse -

i'm working under myeclipse , in java ee environnement , added js file webroot , , myeclipse indicating error prevents project being built

project 'grh' missing required source folder: 'kickstart' 

kickstart name of js file , don't konw why i'm getting error , removed js file , problem still remaining , redeployed project , changes on src folder not considered

try following : (may helpful)

project -> build path -> configure build path -> unselect src, save & select again.

the reason unselect src because src folder contains com/yourpackage/ when unselect it, take new 1 , rebuilt well