CMake unable to determine linker language with C++

Question

I\'m attempting to run a cmake hello world program on Windows 7 x64 with both Visual Studio 2010 and Cygwin, but can\'t seem to get either to work. My directory structure is

Answer 1

I managed to solve mine, by changing

add_executable(file1.cpp)

to

add_executable(ProjectName file1.cpp)