[ERR] com.sencha.exceptions.BasicException: GC overhead limit exceeded

> I have added the following line to both sencha.cfg file in /cmd/.. and in .sencha/app directories

cmd.jvm.args=-Xms1024m -Xmx8192m -Dapple.awt.UIElement=true -XX:-UseGCOverheadLimit -XX:+HeapDumpOnOutOfMemoryError -XX:-UseConcMarkSweepGC

https://www.sencha.com/forum/showthread.php?334811-ERR-C2001-Closure-Compiler-Error-(Parse-error-invalid-assignment-target)-compr