mps-start Failed to start with error

when i used matlab2012b to created a server，and use the command mps-start,it comes an error,in the log file which is like this:

1 [2012.12.07 16:13:06.935371] [information] Starting master (pid = 3320)
2 [2012.12.07 16:13:07.368396] [information] [SERVICE:FLEXlm Client] License unavailable
3 [2012.12.07 16:13:07.368396] [information] [SERVICE:FLEXlm Client] temporarily disabling request processing
4 [2012.12.07 16:13:07.512404] [error] [License:FlexlmLicenseApi] checkout() failed-5
5 [2012.12.07 16:13:07.512404] [error] [License:FlexlmLicenseApi] License Checkout Error
6 [2012.12.07 16:13:07.513404] [error] [SERVICE:FLEXlm Client] license checkout failed
7 [2012.12.07 16:13:07.514405] [error] [SERVICE:FLEXlm Client] License Manager failed to start
8 [2012.12.07 16:13:07.514405] [error] [SERVICE:FLEXlm Client] Failed to start with error, code = 16, message = license checkout failed

Can you the reson ,and how to solve the problem,thanks!

[Friedrich]

Seems like your FlexLM license server is not running. I would suggest install support. They can help you getting MPS running.