Many projects are failing to build in Visual Studio 2019

Hi All,

I have recently updated my local git repository. I created a Visual Studio solution using CMake (as suggested in the llvm doc). I am able to get a solution, but on building it many projects are failing.
Some errors are like below

|Error|C2976|‘std::map’: too few template arguments|LLVMHexagonCodeGen|C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\VC\Tools\MSVC\14.24.28314\include\map|75||

I am not sure what I am missing in my solution.