title: How can I get the line number and file name from an exception in net Core?
body: <p>I used to be able to pull my line number and class for an exception with the following</p>
  
  <pre><code>   System.Diagnostics.StackTrace trace = new System.Diagnostics.StackTrace(ex, true);
      var stackFrame = trace.GetFrame(trace.FrameCount - 1);
      var lineNumber = stackFrame.GetFileLineNumber();
      var file = stackFrame.GetFileName();
  </code></pre>
  
  <p>However working with a class library in .Net Core 1.0 now whenever I try to pull that information the line number is always 0 and the filename is always null.  </p>
  
  <p>I am setting the needfileinfo boolean to true and the pdb files are present.  Is this some feature that just doesn't work yet in a NET Core framework or is there some different approach I am supposed to be taking now?</p>
  
  <p>To Speak to the Answer provided below.   I am already using "System.Diagnostics.StackTrace": "4.0.1" and having the same result. Null FileName and 0 FileNumber.  I even started a new project duplicating only his code and same result. Null File Name and 0 File Number using the "System.Diagnostics.StackTrace": "4.0.1" </p>
  
  <p>UPDATE::</p>
  
  <p>Pursuing every option I can think of I tried this on a different workstation. And it works fine. So apparently its something on my workstation that is failing...So the problem is environmental an not specific to the package.  I will update again when I have figured out what the problem is.</p>
  
  <p>So after further investigation interestingly enough.  While it is environmental it is also specific to Net Core.  in non Net Core applications in the same environment the StackTrace works fine.  However I am getting security audit failures in my event log </p>
  
  <pre><code>A privileged service was called.
  
  Service:
      Server: Security
      Service Name:   -
  
  Process:
      Process ID: 0x55a0
      Process Name:   C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\Remote Debugger\x64\msvsmon.exe
  
  Service Request Information:
      Privileges:     SeCreateGlobalPrivilege
  
  and  
  
  A privileged service was called.
  
  
  Service:
      Server: Security
      Service Name:   -
  
  Process:
      Process ID: 0x5628
      Process Name:   C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\CommonExtensions\Microsoft\IntelliTrace\14.0.0\IntelliTrace.exe
  
  Service Request Information:
      Privileges:     SeCreateGlobalPrivilege
  </code></pre>
  
  <p>whenever I try to run it from a net core app.
  Seems clear that the Core app access these services differently than legacy frameworks and its conflicting with security policies applied to the system. Ive contacted our Microsoft representative seeking more information to see if the issue cant be resolved.  Will continue to update.</p>