I am rebuilding a 2.9 add-in in 3.0. In my Dockpane, I have a button where I would like show the icon FolderOpenState16.png. The code that worked in 2.9 throws an error in 3.0
<Button x:Name="OpenButton" Grid.Column="2" BorderBrush="Transparent" HorizontalAlignment="Right" VerticalAlignment="Center" Width="30" Background="{x:Null}" DockPanel.Dock="Right" Style="{DynamicResource Esri_Button}"
Command="{Binding OpenBrowseDialog}"
CommandParameter="OpenButton">
<Image Source="pack://application:,,,/ArcGIS.Desktop.Resources;component/Images/FolderOpenState16.png" HorizontalAlignment="Left" Height="16" VerticalAlignment="Top" Width="16" ToolTip="Browse"/>
</Button>
I'm getting the error for the Image Source: "Could not load file or assembly 'ArcGIS.Desktop.Resources, Culture=neutral, PublicKeyToken=null'. The system cannot find the file specified."
That assembly does exist in my project, so why is this error occurring?
Unable to download ArcGIS Pro 3.0 though my computer meets requirements