synopsys 2014版 license 校验失败，求指导

系统：ubuntu 16.04

正常生成license后，按说名执行：
root@songwei-System-Product-Name:/home/songwei# /usr/synopsys/11.9/amd64/bin/sssverify /home/songwei/eda/synopsys/license/synopsys.dat

Integrity check report for license file "/home/songwei/eda/synopsys/license/synopsys.dat".
Report generated on 08-Jul-2018 (SCL_11.9)
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Checking the integrity of the license file....
Valid SSS feature found. INVALID license file fingerprint.
You have added 3 new features to this file.
All revenue keys ("SN=RK:..." on feature line) have been excluded.
Licensed to mammoth//ZWT 2006
Siteid: <No Site Id>, Server Hostid: d017c2996ceb, Issued on: N/A
License file integrity check FAILED！
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This is an INVALID license file. You SHOULD NOT use this license file.
Please use the license file as received from Synopsys, Inc.

最后显示license 生成FAILEED，请问这个是什么原因呢?怎么解决?求帮助！

when add each feature to the license file, you have to generate new SSS feature, so integrity of the license will be checked successfully.

怎么生成新的SSS FEATURE啊?