System.ArgumentException: A factory of this type was already registered
at UnityEngine.UIElements.VisualElementFactoryRegistry.RegisterFactory (UnityEngine.UIElements.IUxmlFactory factory) [0x00040] in <06214b245dbb4d10a9cefd10639bb04e>:0
at UnityEditor.UIElements.UXMLEditorFactories..cctor () [0x00223] in <2f1c602eae0d45c293fff3e3aef759fa>:0
UnityEditor.EditorAssemblies:ProcessInitializeOnLoadAttributes(Type[])
It shows when i open my project
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