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Editorial Team
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Asked: 2026-05-25T06:58:20+00:00

I am trying to execute MSBuild programmatically and can’t execute the following command: string

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I am trying to execute MSBuild programmatically and can’t execute the following command:

string command = string.Format(@"C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe  ""{0}\{1}.csproj""", _args.ProjectPath, _args.ProjectName);

The string gets rendered as:

C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe  "C:\...\TestResults\Foo 2011-08-31 16_29_40\Out\Foo\solutionName\projectName\projectName.csproj"

I then use new ProcessStartInfo(command). The problem seems to be the space between Foo and 2011. I get the following output:

MSBUILD : error MSB1008: Only one project can be specified.
Switch: 16_29_40\Out\Foo\solutionName\projectName\projectName.csproj

How do I pass in the project file to MSBuild?

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1 Answer

  1. Editorial Team

    I would recommend stronlgy to go the official route via classes/interfaces in Microsoft.Build namespace. Microsoft uses this all over the place, so this should count for something…

    Esp. the class Microsoft.Build.Execution.BuildManager and the Singleton Microsoft.Build.Execution.BuildManager.DefaultBuildManager is what you are after to run a build task… source code examples:

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