Urho3D Editor throws error when Urho3D is build without the 2D components… This error comes from the EditorHierachyWindow.as at line 879 and 883 where ParticleEffect2D is referenced, it throws the error because ParticleEffect2D (and other 2D component) does not exist in the build.
If it’s worth it, I believe it will be awesome to implement a work-around for this issue so that those using the Urho3D library without 2D components can still use the Editor without problem