When updating Snow License Manager (SLM) to version 25.1.0 using the Snow Update Service (SUS), the update may fail with a validation error and be rolled back. The update log may contain an error similar to the following:
ERROR SnowSoftware.Update.ProductUpdate [(null)] - Could not install update v 25.1.00 for Snow License Manager Enterprise Edition (UR# 589).
System.ApplicationException: Update could not be installed. Instructions have been rolled back.
---> System.Xml.Schema.XmlSchemaValidationException: The 'sameSite' attribute is not allowed.
This issue occurs when the sameSite attribute is present in the <httpCookies> element in the Snow License Manager web application’s web.config file. During the update process, the XML schema validation does not recognize the sameSite attribute, which causes the update to fail and roll back.
Remove the sameSite attribute from the <httpCookies> element in the web.config file. The corrected configuration should appear as follows:
<httpCookies httpOnlyCookies="true" requireSSL="false" />
IMPORTANT: Back up the web.config file before making any changes.
File location:C:\Program Files\Snow Software\Snow License Manager\Web\web.config
Steps
- Navigate to the directory listed above.
- Open
web.configin a text editor with administrative privileges. - Locate the
<httpCookies>element. - Remove the
sameSiteattribute. - Save the file.
- Retry the update using the Snow Update Service.
NOTE: This issue is related to web application security settings and may vary depending on IIS configuration and infrastructure. If you are unsure about modifying the configuration file, contact Snow Support for assistance.
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Case id: 00001065
Activity: Status change: 2 hours ago