[wix-devs] Building Wix 4.0 commit f94e47a9e1b6d4366e5d2c8e850067204d0c5dc9 with VS 2019 present in addition to VS2022

[Ron Martin]

I've run into a problem when building commit 
f94e47a9e1b6d4366e5d2c8e850067204d0c5dc9 from the command line. Here is 
a summary of the output:

[xUnit.net 00:00:09.04] 
WixE2E.WixE2EFixture.CanBuildPackageWithNativeWindowsApp [FAIL]
    MSBuild failed unexpectedly. Output:
Microsoft (R) Build Engine version 16.11.2+f32259642 for .NET Framework
-----------------------------------------------------------------------
C:\Program Files (x86)\Microsoft Visual 
Studio\2019\Community\MSBuild\Current\Bin\amd64\MSBuild.exe
 >>>-bl -Restore -v:m 
D:\AltRepos\AltWix\wix4\build\IntegrationWix\Debug\net472\TestData
 >>>\WixprojPackageVcxprojWindowsApp\WixprojPackageVcxprojWindowsApp.wixproj
-----------------------------------------------------------------------
C:\Program Files (x86)\Microsoft Visual 
Studio\2019\Community\MSBuild\Microsoft\VC\v160

 >>>\Microsoft.CppBuild.targets(439,5): error MSB8020: The build tools 
for v143 (Platform Toolset = 'v143')
 >>>cannot be found.  To build using the v143 build tools, please 
install v143 build tools.
 >>>Alternatively, you may upgrade to the current Visual Studio tools by 
selecting the Project menu
 >>>or right-click the solution, and then selecting "Retarget solution".
 >>>[D:\AltRepos\AltWix\wix4\build\IntegrationWix\Debug\net472\
 >>>TestData\VcxprojWindowsApp\VcxprojWindowsApp.vcxproj]
.....................................................................................
C:\Program Files (x86)\Microsoft Visual 
Studio\2019\Community\MSBuild\Microsoft\VC\v160
 >>>\Microsoft.CppBuild.targets(439,5): error MSB8020: The build tools 
for v143 (Platform Toolset = 'v143')
 >>>cannot be found. To build using the v143 build tools, please install 
v143 build tools.
 >>>Alternatively, you may upgrade to the current Visual Studio tools by 
selecting the Project menu
 >>>or right-click the solution, and then selecting "Retarget solution".
 >>>[D:\AltRepos\AltWix\wix4\build\IntegrationWix\Debug\net472\
 >>>TestData\VcxprojStaticLib\VcxprojStaticLib.vcxproj]
-----------------------------------------------------------------------
[xUnit.net 00:00:24.35] WixE2E.WixE2EFixture.CanBuildWixlibWithNativeDll 
[FAIL]
    MSBuild failed unexpectedly. Output:
Microsoft (R) Build Engine version 16.11.2+f32259642 for .NET Framework
-----------------------------------------------------------------------
C:\Program Files (x86)\Microsoft Visual 
Studio\2019\Community\MSBuild\Current\Bin\amd64\MSBuild.exe
 >>>-bl -Restore -v:m 
D:\AltRepos\AltWix\wix4\build\IntegrationWix\Debug\net472\TestData
 >>>\WixprojLibraryVcxprojDll\WixprojLibraryVcxprojDll.wixproj
-----------------------------------------------------------------------
C:\Program Files (x86)\Microsoft Visual 
Studio\2019\Community\MSBuild\Microsoft\VC\v160
 >>>\Microsoft.CppBuild.targets(439,5): error MSB8020: The build tools 
for v143 (Platform Toolset = 'v143')
 >>>cannot be found. To build using the v143 build tools, please install 
v143 build tools.
 >>>Alternatively, you may upgrade to the current Visual Studio tools by 
selecting the Project menu
 >>>or right-click the solution, and then selecting "Retarget solution".
 >>>[D:\AltRepos\AltWix\wix4\build\IntegrationWix\Debug\net472\
 >>>TestData\VcxprojStaticLib\VcxprojStaticLib.vcxproj]

Because these messages indicated that VS 2019 was being used for these 
two builds, but VS 2019 was looking for
the VS 2022 build tools, I decided to remove VS2019 from my system. I 
repeated the build and it was successful.

I thought that perhaps there were vcxproj files calling for tools 
version 15.0, and that while searching for an
appropriate match, VS2019 might be used, if present. In fact, there were 
24 such vcxproj files. I updated all of them
to use version 16.0, but with VS 2019 re-installed, the same failures 
again occurred.

If you run the WixE2ETests from VS 2022, the failures also occur, but I 
haven't tried that with VS 2019 removed.

I assume that I missed some parameter that needs to be changed to 
specify the version of VS to be used when
building a vcxproj.

Ron