2001 impala ls a/c leak

Hello I just picked up this Impala used and have a a/c leak. I charged the system (134a had dye in it) and cannot seem to locate the leak. Any common leaks?

Thanks

Did the system take the charge ? Does your a/c work now ? My wife had her 2000 Impala recharged this spring and the technician told her he put dye into the system so if it leaks out again , the dye would pinpoint the leak . So if it works , enjoy it and maybe in the future the leak will show itself ! Good luck !