[CMake] What's wrong with the INSTALL Path error?

[Kermit Mei]

Hello, I use the cmake-command on unix and it works well, but. But
Windows, it told me that:

CMake Error at src/gui/CMakeLists.txt:99 (INSTALL):
    install Library TARGETS given no DESTINATION!

The INSTLL in CmakeLists.txt is like this:
INSTALL(PROGRAMS ${PROJECT_BINARY_DIR}/bin/qfrt DESTINATION bin)

Why?

Thanks.
Kermit