title: Portable Class Library in Monodevelop:incompatible target framework
body: <p>I get this error when trying to compile the portable class library for my mono project.</p>
  
  <pre><code>C:\Program Files (x86)\Mono-2.10.9\lib\mono\xbuild\Microsoft\Portable\v4.0\Microsoft.Portable.CSharp.targets: Project file could not be imported, it was being imported by PortableTest.csproj: Imported project: "C:\Program Files (x86)\Mono-2.10.9\lib\mono\xbuild\Microsoft\Portable\v4.0\Microsoft.Portable.CSharp.targets" does not exist. (PortableTest)
  </code></pre>
  
  <p>I use the modified 3.1.1 version of Monodevelop supporting portable class library and I think it was working before I reinstall mono. I suppose the folder has been deleted.</p>
  
  <p>Is there an easy way to be able to compile a portable library in monodevelop again?</p>
  
  <p>Thanks in advance for your help.</p>