i have downloaded the extension for Final IK.
After importing in Unity there ist following problems:
1.)
Assets/ParadoxNotion/SLATE Resources/Extensions/FinalIK/AnimateIKBase.cs(9,77): error CS0246: The type or namespace name `SolverManager’ could not be found. Are you missing a using directive or an assembly reference?
2.)
Assets/ParadoxNotion/SLATE Resources/Extensions/FinalIK/AnimateIKBase.cs(9,50): error CS0309: The type T' must be convertible toUnityEngine.Component’ in order to use it as parameter T' in the generic type or methodSlate.ActionClips.ActorActionClip<T>’