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Request a Feature Report a Bug
Completed
Last Updated: 28 Jul 2025 10:42 by ADMIN
Larry
Created on: 24 Oct 2023 19:37
Category: UI for Blazor
Type: Bug Report
0
Error during conversion of a new Blazor project to a Telerik Blazor project using the extension Visual Studio 2022
An error occurred while running the wizard.

Error executing custom action Telerik.Blazor.VSX.Actions.UpdateMasterPageAction: System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary.
   at System.ThrowHelper.ThrowKeyNotFoundException()
   at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
   at Telerik.Blazor.VSX.Actions.UpdateMasterPageAction.RetrieveMasterPageSettingsUpgradeInfo(IPropertyDataDictionary arguments, IProjectWrap project)
   at Telerik.Blazor.VSX.Actions.UpdateMasterPageAction.Execute(WizardContext wizardContext, IPropertyDataDictionary arguments, IProjectWrap projectWrap)
   at Telerik.VSX.WizardEngine.ActionManager.ExecActions()
1 comment
ADMIN
Nikola
Posted on: 31 Oct 2023 06:54

Hi Larry,

I am sorry you are facing difficulties using the VS extension.

I was able to reproduce the behaviour at my end and have logged an item, so this could be fixed. You can follow the status here as it will update once the internal item is planned and development has started.

The workaround for the issue is to manually convert the project to a Telerik one. You can use the steps in this article as a guide. 

I have also updated your Telerik points balance for turning our attention to this problem.

In case you have any other questions do not hesitate to get back to us.

Regards,
Nikola
Progress Telerik

Stay tuned by visiting our public roadmap and feedback portal pages! Or perhaps, if you are new to our Telerik family, check out our getting started resources!
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