Problems adding an ObjectDataProvider in resources

Question

I'm setting up some things in XAML, but for some reason, I'm having an issue. I'm trying to add an ObjectDataProvider to my resources, but when I'm doing that, I get this warning on my resourcedictionnary saying i cannot have multiple items in a resourcedictionnary if they don't all have key attribute in it. So I add a key to resourcedictionnary, but then I have a problem on my dynamic resource in my contentcontrol. It says it cannot resolve "DefaultEmptyPane". Then I add a reference to the key of the resourcedictionnary, but then there's some kinda of mismatch.

Is there anyone who's seeing the issue here? Below is the XAML:

<Page.Resources>
    <!--<ObjectDataProvider x:Key="projectList" MethodName=""/>-->
    <ResourceDictionary>
        <ResourceDictionary.MergedDictionaries>
            <ResourceDictionary Source="/Resources/Panes/DefaultEmptyPane.xaml" />
        </ResourceDictionary.MergedDictionaries>
        <local:PopulationNameGetNameOnlyConverter x:Key="PopulationNameGetNameOnlyConverter"/>
        <local:PopulationNameGetNumberOfTestsConverter x:Key="PopulationNameGetNumberOfTestsConverter"/>
        <local:PopulationNameGetDateConverter x:Key="PopulationNameGetDateConverter"/>
        <local:NormValidationValueToVisibilityConverter x:Key="NormValidationValueToVisibilityConverter"/>
        <local:NormrequestCalculatedToVisibilityConverter x:Key="NormrequestCalculatedToVisibilityConverter"/>
        <local:RemoveUnderscoreConverter x:Key="RemoveUnderscoreConverter"/>
    </ResourceDictionary>
</Page.Resources>

<ContentControl Template="{DynamicResource DefaultEmptyPane}">
    <!--Content-->
</ContentControl>