title: No way to resolve conflict between versions
body: <p>I'm totally new in C#. I got a warning during the build:</p>
  
  <pre><code>MSB3276: Found conflicts between different versions of the same dependent assembly.
  </code></pre>
  
  <p>Now I used AmSpy to find which assemby. The output was:</p>
  
  <pre><code>No way to resolve conflict between "mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" and 
  "mscorlib, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089". Choosing "mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" arbitrarily.
  </code></pre>
  
  <p>Now I my question? How or where do I have to change the version? (One is 2.0.0.0 and the other is 4.0.0.0</p>
  
  <p>Thanks</p>