第一次使用c模拟器可以出现模拟器，但是关闭模拟器会卡住，界面无响应。第二次打开工程，使用模拟器会出现错误
cp: can't create 'build/bin/SDL2.dll': File exists
Makefile:113: recipe for target 'cp_lib' failed
mingw32-make: [cp_lib] Error 1 (ignored)
"Linking simulator.exe"
d:/software/gui-guider-1.6.1-ga/environment/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe: cannot open output file build/bin/simulator.exe: Permission denied
collect2.exe: error: ld returned 1 exit status
mingw32-make: *** [default] Error 1
