C/C++ в NetBeans

Скачала NetBeans, поставила компилятор Cygwin, но проект собирается с ошибкой. На код NetBean не ругается, путь к компилятору прописан. При сборке выводит:

"/usr/bin/make" -f nbproject/Makefile-Debug.mk QMAKE= SUBPROJECTS= .build-conf
make[1]: Entering directory '/cygdrive/c/Users/Jane/Documents/NetBeansProjects/lab'
"/usr/bin/make" -f nbproject/Makefile-Debug.mk dist/Debug/Cygwin_4.x-Windows/lab.exe
make[2]: Entering directory '/cygdrive/c/Users/Jane/Documents/NetBeansProjects/lab'
mkdir -p build/Debug/Cygwin_4.x-Windows
rm -f build/Debug/Cygwin_4.x-Windows/lab5_14_1.o.d
gcc -c -g -MMD -MP -MF build/Debug/Cygwin_4.x-Windows/lab5_14_1.o.d -o build/Debug/Cygwin_4.x-Windows/lab5_14_1.o lab5_14_1.c
mkdir -p build/Debug/Cygwin_4.x-Windows
rm -f build/Debug/Cygwin_4.x-Windows/main.o.d
gcc -c -g -MMD -MP -MF build/Debug/Cygwin_4.x-Windows/main.o.d -o build/Debug/Cygwin_4.x-Windows/main.o main.c
mkdir -p dist/Debug/Cygwin_4.x-Windows
gcc -o dist/Debug/Cygwin_4.x-Windows/lab build/Debug/Cygwin_4.x-Windows/lab5_14_1.o build/Debug/Cygwin_4.x-Windows/main.o
build/Debug/Cygwin_4.x-Windows/main.o: In function `main':
/cygdrive/c/Users/Jane/Documents/NetBeansProjects/lab/main.c:14: multiple definition of `main'
build/Debug/Cygwin_4.x-Windows/lab5_14_1.o:/cygdrive/c/Users/Jane/Documents/NetBeansProjects/lab/lab5_14_1.c:3: first defined here
collect2: error: ld returned 1 exit status
nbproject/Makefile-Debug.mk:63: recipe for target 'dist/Debug/Cygwin_4.x-Windows/lab.exe' failed
make[2]: *** [dist/Debug/Cygwin_4.x-Windows/lab.exe] Error 1
make[2]: Leaving directory '/cygdrive/c/Users/Jane/Documents/NetBeansProjects/lab'
nbproject/Makefile-Debug.mk:60: recipe for target '.build-conf' failed
make[1]: *** [.build-conf] Error 2
make[1]: Leaving directory '/cygdrive/c/Users/Jane/Documents/NetBeansProjects/lab'
nbproject/Makefile-impl.mk:39: recipe for target '.build-impl' failed
make: *** [.build-impl] Error 2


СОБРАТЬ FAILED (значение выхода 2,, общее время: 10s)

Помогите, пожалуйста! Я очень хочу работать в NetBeans

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