CMAKE ERROR

[KennisL]

Hello ,Happy New Year for the 2019!
i'm the first time to learn your project. Win10 x64 System, when i using 'cmake' clicked 'Generate' button . It shows this error:

CMake Error at CMakeLists.txt:78 (add_library):
Cannot find source file:

CMake Warning (dev) at CMakeLists.txt:41 (add_definitions):
Policy CMP0005 is not set: Preprocessor definition values are now escaped
automatically. Run "cmake --help-policy CMP0005" for policy details. Use
the cmake_policy command to set the policy and suppress this warning.
This warning is for project developers. Use -Wno-dev to suppress it.

CMake Warning (dev) in CMakeLists.txt:
No cmake_minimum_required command is present. A line of code such as

cmake_minimum_required(VERSION 3.12)

should be added at the top of the file. The version specified may be lower
if you wish to support older CMake versions for this project. For more
information run "cmake --help-policy CMP0000".
This warning is for project developers. Use -Wno-dev to suppress it.

Configuring done
CMake Error at CMakeLists.txt:78 (add_library):
Cannot find source file:

F:/coding/KS_GENICAM/KSGENICAM/project_version.cc

Tried extensions .c .C .c++ .cc .cpp .cxx .cu .m .M .mm .h .hh .h++ .hm
.hpp .hxx .in .txx

CMake Error at CMakeLists.txt:78 (add_library):
No SOURCES given to target: rc_genicam_api_static

I had tried in Win7 system , it is the same problem. Would you please help me, thanks a lot!

[heikohimu]

Are you sure that you set source directory in cmake to the top level directory of rc_genicam_api?

[KennisL]

Are you sure that you set source directory in cmake to the top level directory of rc_genicam_api?

Oh, I set source directory to the directory which named " rc_genicam_api ", but it not the top level directory of rc_genicam_api. It is the subdirectory of the top level directory, Just the same name.
It works now , Thanks for you help ~