What is the error when compiling minGW?

Question

GTK+

I installed GTK on minGW, everything seems to be according to the instructions, but when compiling, it gives these errors:
16:52:42 **** Incremental Build of configuration Debug for project WINDOW_TEST ****
Info: Internal Builder is used for build
gcc ` pkg-config --cflags gtk+-3.0` "-I`pkg-config --cflags gtk+-3.0`" -O0 -g3 -Wall -c -fmessage-length=0 -o main.o "..\\main .c"
gcc: error: `pkg-config: No such file or directory
gcc: error: gtk+-3.0`: No such file or directory
gcc: error: unrecognized command line option '--cflags'
16:52:42 Build Finished (took 119ms)

Answer 1

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