Can't compile any project, getting error "multiple target patterns"

[Srechko]

Hello,

I'm a new Netbeans user, and I'm struggling a lot, first of all because of the following error message I get trying compile any project (Java or C):

"/usr/bin/make" -f nbproject/Makefile-Debug.mk QMAKE= SUBPROJECTS= .clean-conf
make[1]: Entering directory '/cygdrive/c/Users/svukajlo/Documents/NetBeansProjects/Test77'
make[1]: Leaving directory '/cygdrive/c/Users/svukajlo/Documents/NetBeansProjects/Test77'
nbproject/Makefile-impl.mk:45: recipe for target '.clean-impl' failed
build/Debug/Cygwin_4.x-Windows/main.o.d:1: *** multiple target patterns. Stop.
make: *** [.clean-impl] Error 2

CLEAN FAILED (exit value 2, total time: 14s)

I built several Java projects and they ran and compiled fine. After that, added a new C project. It compiled fine, then I made some changes to the program, tried compiling again, and got this same error again:

build/Debug/Cygwin_4.x-Windows/main.o.d:1: *** multiple target patterns. Stop.

Now ALL of the projects fail with the same error (even the Java ones that used to compile fine).

Read all the forums, tried everything I could find, this error is not going away.

Please help.

I'm on Win 7, running NetBeans IDE 8.0.1. and have cygwin64 installed.

Thanks!