In Snow License Manager (SLM) when attempting to browse to Agreements > List all agreements the page does not load, instead displayhing the error:
An error occurred on the page!
Environment
- Snow License Manager 8.3.0
Analysis
Then on the SLM server, review the newest log file in the "%ProgramFiles%\Snow Software\Snow License Manager\Web\logs\Error\" directory, and look for an error similar to the following at the time that the problem occurred:
14:05:08,415 ERROR APPLICATION Application error. [PAGE: /Pages/ContractList.aspx | EXCEPTION: Exception of type 'System.Web.HttpUnhandledException' was thrown. (Boolean HandleError(System.Exception), System.Web) | INNER EXCEPTION: Duplicate node key (Void RegisterNode(DevExpress.Web.ASPxTreeList.TreeListNode), DevExpress.Web.ASPxTreeList.v13.2)]The "Duplicate node key" message implies that it was encountering duplicate entries when trying to render the Agreements page.
Resolution
In this particular example, there were two Agreements with the same name. To verify what Agreements are available, choose Reports-->Reports, and search for the "All Agreements" report. Sort by the name to confirm whether there are two Agreements with the same name. Determine whether one can be updated, or deleted, to avoid the issue.
Also, there were two Agreement periods: one that ended on the current day, and one that started on the current day. Overlapping agreement periods, even when just one day, can cause other problems. Be sure the agreement periods do not overlap.
Was this helpful?
Related Articles
Computer Details timing out throwing "An error occurred on the page!" 85Number of Views Adding an Oracle agreement results in "1 incomplete fields" error 15Number of Views Operators with "List Software Licenses" set to Disallow or Deny results in an 'Unexpected error' after login 5Number of Views Deleting records in bulk from the user page results in an error and failure to delete users 4Number of Views Error may appear in beacon-services.log files: "Error occurred while saving the log file. Exception: {0} Stream does not s… 12Number of Views
Revenera Assistant
Online
Hi, I am Reva - Ask me anything.
Updates
No new updates
Chat
Home
Updates
/**/
Thanks for the feedback!
Your feedback has been saved.Rate this response:
1
2
3
4
5
Add Additional feedback ( Optional )
0/240
English
English
Language changed successfully
Something went wrong
Email sent successfully
Something went wrong
Case create successfully
Are you sure you want to cancel
the case creation?
Please select a product to submit the case.
Please select a product version to submit the case.
0/255
Upload Attachment
File Upload
Maximum file
size allowed is 3 MB.
File type
not supported.
Supported file types:
Documents (.txt, .doc, .docx, .pdf), Images (.jpg, .png), Comma Separated Files
(.csv) Speadsheets (.xlsx, .xls)
Are you sure you want to cancel the case creation?
Case closed successfully
File Upload
Maximum file size allowed is 3 MB.
File type not supported.
Supported file types:
Documents (.txt, .doc, .docx, .pdf), Images (.jpg, .png), Comma Separated Files
(.csv) Speadsheets (.xlsx, .xls)
Are you sure you want to close this case
| Products | Region | Phone Numbers |
|---|---|---|
| FlexNet Operations FlexNet Embedded FlexNet Publisher FlexNet Connect FlexNet Code Insight InstallAnywhere InstallShield |
North America * |
+1 630-332-2513 (toll) +1 877-279-2853 (toll-free in North America) |
| Europe * |
+44 1925 944367 (toll) +44 800 047 8642 (toll-free in Europe) |
|
| Japan * | +81 3-4540-5335 (select option 2) | |
| Australia * |
+61 3 9895 2177 +61 1800 560 603 (toll-free in Australia) |
|
|
Usage Intelligence (formerly
Revulytics) Compliance Intelligence |
Please use the Case Portal to submit your support ticket or reach out to your Revenera contact. | |
File Upload
Maximum file
size allowed is 3 MB.
File type
not supported.
Supported file types:
Documents (.txt, .doc, .docx, .pdf), Images (.jpg, .png), Comma Separated Files
(.csv) Speadsheets (.xlsx, .xls)
Revenera Assistant
© 2026 Flexera Software. All Rights Reserved.
Case id: 00001065
Activity: Status change: 2 hours ago