can't build it

[LeeProkhor]

Hello, I am trying to build wxFFmpeg on Ubuntu 24.04.1 and launching command: cmake -B build -DCMAKE_BUILD_TYPE=Release, but I got errors:

-- Building example programs

-- Configuring done (1.5s)
CMake Error at src/CMakeLists.txt:1 (add_library):
Cannot find source file:

GLManager.cc

CMake Error at dep/glew/build/cmake/CMakeLists.txt:130 (add_library):
Cannot find source file:

/home/rock/MyProjects/wxFFmpeg2025/wxFFmpeg/dep/glew/include/GL/wglew.h

Tried extensions .c .C .c++ .cc .cpp .cxx .cu .mpp .m .M .mm .ixx .cppm
.ccm .cxxm .c++m .h .hh .h++ .hm .hpp .hxx .in .txx .f .F .for .f77 .f90
.f95 .f03 .hip .ispc

CMake Error at dep/glew/build/cmake/CMakeLists.txt:204 (add_executable):
Cannot find source file:

/home/rock/MyProjects/wxFFmpeg2025/wxFFmpeg/dep/glew/src/glewinfo.c

Tried extensions .c .C .c++ .cc .cpp .cxx .cu .mpp .m .M .mm .ixx .cppm
.ccm .cxxm .c++m .h .hh .h++ .hm .hpp .hxx .in .txx .f .F .for .f77 .f90
.f95 .f03 .hip .ispc

CMake Error at src/CMakeLists.txt:1 (add_library):
No SOURCES given to target: wxFFmpeg

CMake Error at dep/glew/build/cmake/CMakeLists.txt:130 (add_library):
No SOURCES given to target: glew

CMake Error at dep/glew/build/cmake/CMakeLists.txt:134 (add_library):
No SOURCES given to target: glew_s

CMake Error at dep/glew/build/cmake/CMakeLists.txt:204 (add_executable):
No SOURCES given to target: glewinfo

CMake Generate step failed. Build files cannot be regenerated correctly.

What do I do wrong?