I have built this WPF application in .NET Framework V4.8. And helixtoolkit.dll and helixtoolkit.WPF.dll are both dll V2.23.0. Now converting this WPF application to .NET Framework V4.5 I get the following error. Even though all the namespaces and dlls are there, this error occurs. i get error in this line :- <helix:HelixViewport3D x:Name="viewPort3d"> and i get this Error:- The tag 'HelixViewport3D' does not exist in XML namespace 'http://helix-toolkit.org/wpf'. Line 10 Position 26.
<Window x:Class="Display3DModel.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:display3dmodel ="clr-namespace:Display3DModel" xmlns:hx="http://helix-toolkit.org/wpf/SharpDX" xmlns:helix1="http://schemas.microsoft.com/netfx/2009/xaml/presentation" xmlns:helix="http://helix-toolkit.org/wpf" Title="SWELL" Height="700" Width="900"> <helix:HelixViewport3D x:Name="viewPort3d"> <helix:HelixViewport3D.DefaultCamera> <PerspectiveCamera FieldOfView="61" NearPlaneDistance="0.001" Position="10,10,10" LookDirection="0,0,-1" UpDirection="0,1,0" /> </helix:HelixViewport3D.DefaultCamera> <helix:SunLight/> <!--<helix:GridLinesVisual3D/>--> <helix:BoundingBoxVisual3D BoundingBox="{Binding SelectedObject, Converter={StaticResource BoundsConverter}}" Diameter="0.2"/> </helix:HelixViewport3D> </Window>
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