c# - Build project with Microsoft.Build API

Question

I'm trying to build a project using the classes in Microsoft.Build.

The code is:

var project = new ProjectInstance(CS_PROJ_FILE);
project.Build();

However it's throwing the following exception:

Microsoft.Build.Shared.InternalErrorException occurred
  HResult=0x80131500
  Message=MSB0001: Internal MSBuild Error: Type information for Microsoft.Build.Utilities.ToolLocationHelper was present in the whitelist cache as Microsoft.Build.Utilities.ToolLocationHelper, Microsoft.Build.Utilities.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a but the type could not be loaded. unexpectedly null
  Source=Microsoft.Build

I've tried adding the following to the packages (both in a net452 and a net7 project):

• id="Microsoft.Build" version="15.1.1012"
• id="Microsoft.Build.Framework" version="15.1.1012"
• id="Microsoft.Build.Runtime" version="15.1.1012"
• id="Microsoft.Build.Tasks.Core" version="15.1.1012"
• id="Microsoft.Build.Utilities.Core" version="15.1.1012"

Still get the same result.

I've also tried using the BuildManager like this:

var buildManager = new BuildManager();
buildManager.Build(new BuildParameters(),
                   new BuildRequestData(new ProjectInstance(CS_PROJ_FILE), 
                                        new[] {"Build"}));

Answer 1

I hit the same error after I installed:

Install-Package Microsoft.Build -Version 15.1.1012

But then I installed:

Install-Package Microsoft.Build.Utilities.Core -Version 15.1.1012

And things started working.

A little confusing...

I was pointed to this stackoverflow question by "dasMulli" at:

https://github.com/Microsoft/msbuild/issues/1889