RVDS Cannot obtain license

zcs4419

编译时碰到一下错误，不知道如何修改
Error: A1439E: Cannot obtain license
for Assembler (feature armasm) with license version >= 2.2:
Invalid (inconsistent) license key
The license-key and data for the feature do not match.
This usually happens when a license file has been altered
Feature:       armasm
License path:  C:\Apps\RVDS221\Licenses\license.dat
FLEXlm error:  -8,523
For further information, refer to the FLEXlm End User Manual,
available at "www.macrovision.com".