message: Rolled back to Visual Studio 2017 for appveyor
diff: version: '{build}'
  image:
  - - Visual Studio 2019
  -# - Visual Studio 2017
  + - Visual Studio 2017
  platform:
  - x64
  # - x86
  @@ -20,8 +19,7 @@ build_script:
  - mkdir build
  - cd build
  - cmake --version
  - - cmake C:\Repos\source -G "Visual Studio 16.7 2019%arch%"
  -# - cmake C:\Repos\source -G "Visual Studio 15 2017%arch%"
  + - cmake C:\Repos\source -G "Visual Studio 15 2017%arch%"
  - cmake --build . --config "Release"
  test_script:
  