InvalidOperationException: You are trying to read Input using the UnityEngine.Input class, but you have switched active Input handling to Input System package in Player Settings.
UnityEngine.Input.GetKey (UnityEngine.KeyCode key) (at <a4fb94421a1943a1b402273763ef29b0>:0)
Fabgrid.Brush.EvaluatePreConditions (UnityEngine.Event e) (at Assets/Fabgrid/Scripts/Editor/Tools/Brush.cs:41)
Fabgrid.Brush.OnMouseDown (UnityEngine.Event e) (at Assets/Fabgrid/Scripts/Editor/Tools/Brush.cs:29)
Fabgrid.Paint.OnMouseDown (UnityEngine.Event e) (at Assets/Fabgrid/Scripts/Editor/FSM/States/Paint.cs:602)
Fabgrid.EventHandler.ProcessEvents (UnityEngine.Event e, Fabgrid.Tool currentTool) (at Assets/Fabgrid/Scripts/Editor/EventHandler.cs:38)
Fabgrid.Paint.OnSceneGUI () (at Assets/Fabgrid/Scripts/Editor/FSM/States/Paint.cs:294)
Fabgrid.FSM.OnSceneGUI () (at Assets/Fabgrid/Scripts/Editor/FSM/FSM.cs:19)
Fabgrid.Tilemap3DEditor.OnDuringSceneGUI (UnityEditor.SceneView sceneView) (at Assets/Fabgrid/Scripts/Editor/Tilemap3DEditor.cs:139)
UnityEditor.SceneView.CallOnSceneGUI () (at <1378b88fef4c46d398a0261fcd723ab7>:0)
UnityEditor.SceneView.HandleSelectionAndOnSceneGUI () (at <1378b88fef4c46d398a0261fcd723ab7>:0)
UnityEditor.SceneView.DoOnGUI () (at <1378b88fef4c46d398a0261fcd723ab7>:0)
UnityEditor.SceneView.OnSceneGUI () (at <1378b88fef4c46d398a0261fcd723ab7>:0)
UnityEngine.UIElements.IMGUIContainer.DoOnGUI (UnityEngine.Event evt, UnityEngine.Matrix4x4 parentTransform, UnityEngine.Rect clippingRect, System.Boolean isComputingLayout, UnityEngine.Rect layoutSize, System.Action onGUIHandler, System.Boolean canAffectFocus) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, UnityEngine.Matrix4x4 worldTransform, UnityEngine.Rect clippingRect, System.Action onGUIHandler, System.Boolean canAffectFocus) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, System.Action onGUIHandler, System.Boolean canAffectFocus) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, System.Boolean canAffectFocus) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.IMGUIContainer.SendEventToIMGUIRaw (UnityEngine.UIElements.EventBase evt, System.Boolean canAffectFocus, System.Boolean verifyBounds) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.IMGUIContainer.SendEventToIMGUI (UnityEngine.UIElements.EventBase evt, System.Boolean canAffectFocus, System.Boolean verifyBounds) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.IMGUIContainer.ProcessEvent (UnityEngine.UIElements.EventBase evt) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.CallbackEventHandler.HandleEvent (UnityEngine.UIElements.EventBase evt) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.CallbackEventHandler.HandleEventAtCurrentTargetAndPhase (UnityEngine.UIElements.EventBase evt) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.CallbackEventHandler.UnityEngine.UIElements.IEventHandler.HandleEvent (UnityEngine.UIElements.EventBase evt) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.EventDispatchUtilities.HandleEventAcrossPropagationPath (UnityEngine.UIElements.EventBase evt) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.EventDispatchUtilities.PropagateEvent (UnityEngine.UIElements.EventBase evt) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.MouseEventDispatchingStrategy.SendEventToRegularTarget (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.BaseVisualElementPanel panel) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.MouseEventDispatchingStrategy.SendEventToTarget (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.BaseVisualElementPanel panel) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.MouseEventDispatchingStrategy.DispatchEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel iPanel) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.EventDispatcher.ApplyDispatchingStrategies (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, System.Boolean imguiEventIsInitiallyUsed) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.EventDispatcher.ProcessEventQueue () (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.EventDispatcher.OpenGate () (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.EventDispatcherGate.Dispose () (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.EventDispatcher.Dispatch (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, UnityEngine.UIElements.DispatchMode dispatchMode) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.BaseVisualElementPanel.SendEvent (UnityEngine.UIElements.EventBase e, UnityEngine.UIElements.DispatchMode dispatchMode) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.UIElementsUtility.DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.UIElementsUtility.UnityEngine.UIElements.IUIElementsUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& eventHandled) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.UIEventRegistration.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.UIElements.UIEventRegistration+<>c.<.cctor>b__1_2 (System.Int32 i, System.IntPtr ptr) (at <7e0d8599f75e4147aee4a8bbf5406b00>:0)
UnityEngine.GUIUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& result) (at <9c5fbd2c5ba0433bb47ffef5ab9945cd>:0)