title: VS2010 (older) installer project - two or more objects have the same target location
body: <p>This installer project was created back in 2004 and upgraded ever since.</p>
  
  <p>There are two offending dll files, which produce a total of 4 errors.</p>
  
  <p>I have searched online for this warning message and did not find a permanent fix (I did manage to make it go away once until I have done something like a clean, or built in Release, and then in Debug).</p>
  
  <p>I also tried cleaning, and then refreshing the dependencies. The duplicated entries are still in there.</p>
  
  <p>I also did not find a good explanation for what this error means.</p>
  
  <p>Additional warnings are of this nature:</p>
  
  <blockquote>
    <p>Warning   36 The version of the .NET
    Framework launch condition '.NET
    Framework 4' does not match the
    selected .NET Framework bootstrapper
    package. Update the .NET Framework
    launch condition to match the version
    of the .NET Framework selected in the
    Prerequisites Dialog Box.</p>
  </blockquote>
  
  <p>So, where is this prerequisites box? I want to make both things agree on .Net 4.0, just having a hard time locating both of them.</p>