EEMS/Tools/DBBackupTool/App.xaml

<Prism:PrismApplication x:Class="DBBackupTool.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
            xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
            xmlns:local="clr-namespace:DBBackupTool"
            xmlns:Prism="http://prismlibrary.com/">
    <Prism:PrismApplication.Resources>
         
    </Prism:PrismApplication.Resources>
</Prism:PrismApplication>