MissingMethodException Thrown

[Eugenenoble2005]

A missing method exception is thrown when using the library. I'm using the RC1 branch:

    <gif:GifImage
            Width="300"
            Height="300"
            SourceUri="avares://My App/Assets/Images/Logo.gif" />

This is the error:

System.MissingMethodException: 'Method not found: 'Void Avalonia.Rendering.Composition.CompositionVisual.set_Size(System.Numerics.Vector2)'.'

When using SourceUriRaw, the exception is thrown everytime meanwhile SoureUri only throws the exception when the avalonia resource has been found.

[Eugenenoble2005]

This appears to only happen on RC2. Works fine in RC1