Makefile:625: recipe for target '

[Genlk]

step by step when I run
make all

stop ,and have this message on terminal

collect2: error: ld returned 1 exit status
Makefile:625: recipe for target '.build_release/tools/finetune_net.bin' failed
make: *** [.build_release/tools/finetune_net.bin] Error 1

how to fix it ?