The issue arises when you choose to edit and then save the configuration values for FlexNet Manager Suite in Internet Information Services (IIS) Manager. An error occurs in some upgraded installations of FlexNet Manager Suite that prevents you from viewing or editing the configuration file in IIS.
The following error message is displayed in the event error log and in IIS Manager when the duplicate key is present:
The error is also visible in the event error log (if you have enabled logging for the ETW event in the Logging Configuration of IIS Manager).
The issue is caused by a duplicate key that is present in the web.config file of some upgraded installations of FlexNet Manager Suite.
Impacted versions
The following existing on-premises implementations of FlexNet Manager Suite are impacted after they have been upgraded to FlexNet Manager Suite 2018 R1:
Note: This error only occurs when an existing implementation of FlexNet Manager Suite is upgraded to FlexNet Manager Suite 2018 R1. It does not occur in fresh new installations of FlexNet Manager Suite 2018 R1 or later.
The issue can be permanently resolved by completing these two tasks:
Task 1: Manually remove the duplicate key from the web.config file of the web application server for FlexNet Manager Suite.
Warning: Making incorrect changes to the web.config file can cause FlexNet Manager Suite to fail at start up or to stop working. Please ensure you have backed up the web.config file to another location before making any changes.
Warning: Making changes to the web.config file will cause the application pool to restart. Any active users that are currently using FlexNet Manager Suite may be interrupted, and any long running processes such as reports will be aborted. As a result, it is recommended that these changes are made outside operation hours or during scheduled downtime.
To make this change:
Task 2: Perform a partial IIS restart
Recommendation: Once the web.config file has been updated, it is recommended that a partial IIS restart be performed on the application pool by default called FlexNet Manager Platform on the web application server.
To perform this restart:
Nov 15, 2018 05:07 PM