I have a C project that is built using a makefile, Eclipse constantly warns about \"Invalid project path: Duplicate path entries\", but I cannot figure out what the hell it
I found this bug report to help my problem. I had moved some include paths and couldn't get rid of the old paths.
I've seen this problem too, old paths are never deleted. To manually fix the file you need to move/delete the ${projectname}.sc file found under ${workspace}/.metadata/.plugins/org.eclipse.cdt.make.core
https://bugs.eclipse.org/bugs/show_bug.cgi?id=206372