Unknown build error, 'An item with the same key has already been added.' IOException: Cannot locate resource

[vsfeedback]

This issue has been moved from a ticket on Developer Community.

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[severity:It's more difficult to complete my work]
Working on WPF .NET 9 application and getting this error on first compile after editing source code, no error if I rebuild it for the second time. VS 2022 Pro.
But, after running the solution, program failed with code:
System.Windows.Markup.XamlParseException: ''Provide value on 'System.Windows.Baml2006.TypeConverterMarkupExtension' threw an exception.' Line number '67' and line position '14'.'
Inner Exception
IOException: Cannot locate resource 'assets/toolbaricons/refresh.png'.

DictionaryPage.xaml
DictionaryPage.xaml.cs
DictionaryViewModel.cs
Instructors.csproj

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Original Comments

Feedback Bot on 7/7/2025, 03:19 PM:

We have directed your feedback to the appropriate engineering team for further evaluation. The team will review the feedback and notify you about the next steps.

[lindexi]

@harshit7962 I can not download the attach files. Can you download it?

[harshit7962]

@lindexi, I am unable to download those either. Since this was a transferred ticket, I was hoping to find the files in the original ticket, but that does not seem to be the case.
@vsfeedback can you please provide the repro again?