See the error message you have received:
syntax error: unexpected "("
You have not properly setup your command line. You are using a path with spaces but have not double-quoted it:
C:/Users/weila.LAPTOP-01E268KC/Downloads/LEDsampleinput_mcuxpresso_k64f\ (2).zip_expanded/LEDsampleinput/mbed/TARGET_K64F/TOOLCHAIN_GCC_ARM/system_MK64F12.o
Because that above path contains spaces, you have to use double quotes ("....") for it.
In addition to that, you have
\ (2).zip_expanded/
It is not a good idea to use parenthesis and spaces in a path.
I hope this helps,
Erich