please all i have this error message when i reach
cd darknet--nnpack
make
/usr/bin/ld: /home/pi/ninja/NNPACK-darknet/deps/pthreadpool/src/pthreads.c:459: undefined reference to pthreadpool_deallocate' /usr/bin/ld: darknet: internal symbolpthreadpool_allocate' isn't defined
/usr/bin/ld: final link failed: bad value
collect2: error: ld returned 1 exit status
make: *** [Makefile:105: darknet] Error 1
please all i have this error message when i reach cd darknet--nnpack make /usr/bin/ld: /home/pi/ninja/NNPACK-darknet/deps/pthreadpool/src/pthreads.c:459: undefined reference to
pthreadpool_deallocate' /usr/bin/ld: darknet: internal symbolpthreadpool_allocate' isn't defined /usr/bin/ld: final link failed: bad value collect2: error: ld returned 1 exit status make: *** [Makefile:105: darknet] Error 1how can i solve it?