Thanks for the information. Please, even if you have created a new project, perhaps did you copy the layouts to it ? Perhaps trying to check if there is no reference to the removed image in that layout ?
		
		
	 
i checked and in none of the project exists a reference to the file.
I find something odd when i open the project that gives me the error the warnings seem to be off (image2), 
 
but when i open other project that i can compile the warnings seem to work (image1)...   
 
p.s. none of the files exist...