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ERROR: Defined UserTokenPolicies includes a null policy
January 28, 2025
11:57, EET
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asashour
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June 2, 2021
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Hi all,

On uninstalling the simulation server 5.5.2, and installing 5.4.2, the server isn’t able to start, and there is an error of:

ERROR: Defined UserTokenPolicies includes a null policy

Thanks,

January 28, 2025
12:16, EET
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Matti Siponen
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February 11, 2020
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Hello,

Downgrading the version of Prosys OPC UA Simulation Server is not supported.

You can delete the configuration files in “USERHOME”\.prosysopc\prosys-opc-ua-simulation-server, where “USERHOME” is the user home in your system, to start using the older version of Simulation Server with a new configuration. You can keep the log subfolder for logs of Simulation Server, but deleting everything else is recommended.

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