"CMake Error at: string sub-command STRIP requires two arguments" when trying to build a emulator

[Arthurfogo7]

I'm trying to compile something, but this error is always happening. This is the code of the file that is "causing" the error:

#message("${GIT_EXECUTABLE}")
if(GIT_EXECUTABLE)
execute_process(COMMAND ${GIT_EXECUTABLE} describe --tags --always OUTPUT_VARIABLE KYTY_GIT_VERSION)
else()
set(KYTY_GIT_VERSION "unknown")
endif()
string(STRIP ${KYTY_GIT_VERSION} KYTY_GIT_VERSION)
configure_file(${INPUT_FILE} ${OUTPUT_FILE})

I'm a beginner, so I need someone to fix this code for me, please.