title: License error manager-4
body: <p>How to resolve this error? Whenever i am using 'syms' it shows this error:-</p>
  
  <p>"Error using sym
  License checkout failed.
  License Manager Error -4
  Maximum number of users for Symbolic_Toolbox reached.
  Try again later.
  To see a list of current users use the lmstat utility or contact your License
  Administrator.</p>
  
  <p>Troubleshoot this issue by visiting:
  <a href="http://www.mathworks.com/support/lme/R2013b/4" rel="nofollow">http://www.mathworks.com/support/lme/R2013b/4</a></p>
  
  <p>Diagnostic Information:
  Feature: Symbolic_Toolbox
  License path:
  C:\Users\hp\AppData\Roaming\MathWorks\MATLAB\R2013b_licenses;C:\MATLAB\licenses\license.dat;C:\MATLAB\licenses\network.lic
  Licensing error: -4,132." 
  Any solution?</p>