title: MSBUILD : error MSB1008: Only one project can be specified
body: <p>Why am I getting the following Build error?</p>
  
  <pre>C:\WINDOWS\Microsoft.NET\Framework\v3.5\msbuild.exe C:\Code\EduBenesysNET\EduBenesysNET\EduBenesysNET.vbproj /t:publish /p:Configuration=Release /p:Platform=AnyCPU /v:detailed /p:PublishDir="\\BSIIS3\c$\DATA\WEBSITES\benesys.net\benesys.net\TotalEducationTest\"  /p:InstallUrl="https://www.benesys.net/benesys.net/TotalEducationTest/"  /p:ApplicationVersion=1.0.1.198  /p:ProductName="Total Education TEST"   /p:PublisherName="BeneSys, Inc."  /p:UpdateRequired="True"  /p:MinimumRequiredVersion=1.0.1.198
  Microsoft (R) Build Engine Version 3.5.30729.1
  [Microsoft .NET Framework, Version 2.0.50727.3603]
  Copyright (C) Microsoft Corporation 2007. All rights reserved.
  
  MSBUILD : error MSB1008: Only one project can be specified.
  Switch: Education
  
  For switch syntax, type "MSBuild /help"
  </pre>
  
  <p>I do not see how a second project is being specified.<br>
  Is it stored in a project file somewhere?</p>