Runs the MSBuild build tool of Microsoft's .NET framework 2.0.
You can either use an existing build file or nest a build file (snippet) as a child into the task. If you don't specify either, MSBuild's default build file search algorithm will apply.
| Attribute | Description | Required | 
| buildfile | External build file to invoke MSBuild on. | No. | 
| vm | Same as dotnetexec's vm attribute. Specify the framework to use. | No. | 
| failOnError | Stops the build if MSBuild returns with a code indicating an error. | No - defaults to true. | 
| errorProperty | Name of the Ant property to set if MSBuild indicated an error. Only useful if the failOnError attribute is set to false. | No. | 
target has a single required attribute name -
    specifies a target to be run.
property has two required attributes.  name and
    value that specify name and value of a property that is to be
    defined in the MSBuild invocation.
This element allows no attributes.  You can nest a MSBuild build
    file into it and MSBuild will be executed on that.  You can also nest
    a build file snippet instead and Ant will wrap the necessary MSBuild
    <Project> around it.
Let MSBuild search for a *.proj file in the (Ant) project's base directory and execute the default target in it:
<msbuild/>
Let MSBuild execute the targets named foo and bar in the build
    file msbuild.proj in Ant's basedir and pass the property
    /property:test=testvalue to it:
      <msbuild buildfile="msbuild.proj">
        <target name="foo"/>
        <target name="bar"/>
        <property name="test" value="testvalue"/>
      </msbuild>
    
    Define a build file embeded into the task, let MSBuild execute the echo target of that build file.
      <msbuild>
        <target name="echo">
        <build>
          <Project DefaultTargets="empty" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
            <Target Name="empty"/>
            <Target Name="echo">
              <Message Text="This is MSBuild"/>
            </Target>
          </Project>
        </build>
      </msbuild>
    
    Run MSBuild's Message task:
      <msbuild>
        <build>
          <Message Text="This is MSBuild"
             xmlns="http://schemas.microsoft.com/developer/msbuild/2003"/>
        </build>
      </msbuild>
    
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