Error: C9932E: Cannot obtain license for Compiler (feature compiler5) with license version >= 5.0201203 Cannot find license file.

Hello there,

I already have a valid Licence for my MDK arm essential version but every time I got this error!

ARM C/C++ Compiler, 5.01 [Build 94]
Error: C9932E: Cannot obtain license for Compiler (feature compiler5) with license version >= 5.0201203
Cannot find license file.
The license files (or license server system network addresses) attempted are
listed below. Use LM_LICENSE_FILE to use a different license file,
or contact your software provider for a license file.
Feature: compiler5
Filename: C:\flexlm\license.dat
License path: C:\flexlm\license.dat;
FLEXnet Licensing error:-1,359. System Error: 2 "No such file or directory"
For further information, refer to the FLEXnet Licensing documentation,
available at "www.flexerasoftware.com".
Cannot obtain license for Compiler (feature bsp_compiler5) with license version >= 5.0201203
Cannot find license file.
The license files (or license server system network addresses) attempted are
listed below. Use LM_LICENSE_FILE to use a different license file,
or contact your software provider for a license file.

Could somebody explain this please?!

Thank you!