title: Perforce password (P4PASSWD) invalid or unset. how to solve using P4.Net
body: <p>I did have some other issue with the API. so I installed Microsoft Visual C++ 2010 Redistributable Package (x86) from </p>
  
  <p><a href="http://www.microsoft.com/download/en/details.aspx?id=5555" rel="nofollow">http://www.microsoft.com/download/en/details.aspx?id=5555</a> </p>
  
  <p>for solving those issues. the issues were solved installing this package. But some of my clients are now having this error message after installing this.the error message is like this :</p>
  
  <p>Error running Perforce command!
  Perforce password (P4PASSWD) invalid or unset.</p>
  
  <p>the exception is coming from this line:</p>
  
  <p>P4RecordSet recordd = p4.Run("workspaces", "-u", userName);</p>
  
  <p>here userName is a valid username of perforce server</p>
  
  <p>There are lots of help regarding this issue with other language. But I could not get any help for P4.NET. Any suggestion please.</p>