Binding Error 4 RelativeSource FindAncestor BindingExpression:Path=Parent

[Genteure]

Problem

System.Windows.Data Error: 4 : Cannot find source for binding with reference 'RelativeSource FindAncestor, AncestorType='System.Windows.FrameworkElement', AncestorLevel='1''. BindingExpression:Path=Parent; DataItem=null; target element is 'ContextMenu' (Name=''); target property is 'Parent' (type 'DependencyObject')
System.Windows.Data Error: 4 : Cannot find source for binding with reference 'RelativeSource FindAncestor, AncestorType='System.Windows.FrameworkElement', AncestorLevel='1''. BindingExpression:Path=Parent; DataItem=null; target element is 'StackPanel' (Name=''); target property is 'Parent' (type 'DependencyObject')

I'm using ContextMenu in Resources

<UserControl
    ...
    xmlns:lex="https://github.com/XAMLMarkupExtensions/WPFLocalizationExtension"
    lex:LocalizeDictionary.DesignCulture=""
    lex:ResxLocalizationProvider.DefaultAssembly="MyAssembly"
    lex:ResxLocalizationProvider.DefaultDictionary="Resources"
    >
    <UserControl.Resources>
        <ContextMenu x:Key="ContextMenuResourcesKey">
            <MenuItem Header="{lex:Loc MenuItemKey}"/>
        </ContextMenu>
    </UserControl.Resources>
    ...
</UserControl>

I believe this is a duplicate of #55 #96 #144 #152

Workaround

Add lex:ResxLocalizationProvider.DefaultDictionary="Resources" to the element in question so it looks like

<UserControl
    ...
    xmlns:lex="https://github.com/XAMLMarkupExtensions/WPFLocalizationExtension"
    lex:LocalizeDictionary.DesignCulture=""
    lex:ResxLocalizationProvider.DefaultAssembly="MyAssembly"
    lex:ResxLocalizationProvider.DefaultDictionary="Resources"
    >
    <UserControl.Resources>
        <ContextMenu x:Key="ContextMenuResourcesKey"
                     lex:ResxLocalizationProvider.DefaultDictionary="Resources">
            <MenuItem Header="{lex:Loc MenuItemKey}"/>
        </ContextMenu>
    </UserControl.Resources>
    ...
</UserControl>

ref: #55 (comment)

[GF-Huang]

So you should put lex:ResxLocalizationProvider.DefaultDictionary="Resources" everywhere you use a ContextMenu.. 😢