visual-studio2019安装后，在windows上编译一直提示错误

[dengerous]

C:\workspace\protobuf\cbuild>cmake -DCMAKE_INSTALL_PREFIX=install -Dprotobuf_WITH_ZLIB=OFF ..\cmake
-- Building for: Visual Studio 16 2019
-- Selecting Windows SDK version 10.0.19041.0 to target Windows 10.0.18363.
-- The C compiler identification is unknown
-- The CXX compiler identification is unknown
CMake Error at CMakeLists.txt:20 (project):
No CMAKE_C_COMPILER could be found.

安装流程来的，windows平台编译一直卡在这里；linux上面可以编译成功。