the log shows
Compiling the C compiler identification source file "CMakeCCompilerId.c" failed. Compiler: D:/ncs/v1.6.1/toolchain/opt/bin/arm-none-eabi-gcc.exe Build flags: Id flags: The output was: 1 d:/ncs/v1.6.1/toolchain/opt/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld.exe: d:/ncs/v1.6.1/toolchain/opt/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/lib\libc.a(lib_a-exit.o): in function `exit': exit.c:(.text.exit+0x2c): undefined reference to `_exit' collect2.exe: error: ld returned 1 exit status Compiling the CXX compiler identification source file "CMakeCXXCompilerId.cpp" failed. Compiler: D:/ncs/v1.6.1/toolchain/opt/bin/arm-none-eabi-gcc.exe Build flags: Id flags: The output was: 1 d:/ncs/v1.6.1/toolchain/opt/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld.exe: d:/ncs/v1.6.1/toolchain/opt/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/lib\libc.a(lib_a-exit.o): in function `exit': exit.c:(.text.exit+0x2c): undefined reference to `_exit' collect2.exe: error: ld returned 1 exit status
how am i going to fix this try to cmake the nrf connect sdk
sdk:
ncs\v1.6.1\zephyr\samples\bluetooth\hci_usb\build\CMakeFiles