VS: linker error

VS: linker error

1. OpenCV error: “LINK : fatal error LNK1104: cannot open file 'opencv_core231d.lib' ”
2. LINK : fatal error LNK1104: cannot open file 'libcollada14dom21.lib'
3. Why does fatal error “LNK1104: cannot open file 'C:\Program.obj'” occur when I compile a C++ project in Visual Studio?
4. LINK : fatal error LNK1104: cannot open file 'mfc140.lib'
5. fatal error LNK1104: cannot open file 'ifconsol.lib'