Do not use x:DataType
MODIFY
WalletWasabi.Fluent/Views/NavBar/NavBar.axaml
WalletWasabi.Fluent/Views/NavBar/NavBar.axaml
</TreeDataTemplate>
</c:NavBarTreeView.ItemTemplate>-->
<c:NavBarTreeView.DataTemplates>
- <DataTemplate x:DataType="vmw:WalletViewModelBase" x:CompileBindings="False">
+ <DataTemplate DataType="vmw:WalletViewModelBase" x:CompileBindings="False">
<Panel>
<Panel Width="45" HorizontalAlignment="Left">
<PathIcon HorizontalAlignment="Left">

Do not use x:DataType