eclipse magic: … Syntax error, varargs are only available if source level is 1.5 or greater

Question

Yesterday I made a project in eclipse, and it was working, compiling. I used Eclipse Galileo for Java EE. Today I open eclipse and see lots of errors saying that stuff is no

Answer 1

Just make sure Java > Installed JREs has jre6 instead of jdk1.6.0

Eclipse seems detect jdk6 as not jre 1.5+