New Unity Input System InvalidCastException error

Hi I'm new to the new Input System and I'm trying to make a simple move mechanic but I keep getting the same 2 errors:

InvalidCastException thrown during execution of 'Performed' callback on action 'lightSaberControls/LightsaberMovement'
UnityEngine.Experimental.Input.LowLevel.<>c__AnonStorey0:<>m__0(NativeInputUpdateType, Int32, IntPtr)
UnityEngineInternal.Input.NativeInputSystem:NotifyUpdate(NativeInputUpdateType, Int32, IntPtr) (at C:/buildslave/unity/build/Modules/Input/Private/Input.cs:91)

and

InvalidCastException: Cannot cast from source type to destination type.
UnityEngine.Experimental.Input.InputActionMapState.ReadValue[Single] (Int32 bindingIndex, Int32 controlIndex, Boolean ignoreComposites) (at Library/PackageCache/com.unity.inputsystem@0.1.2-preview/InputSystem/Actions/InputActionMapState.cs:1173)
UnityEngine.Experimental.Input.InputActionMapState.ReadCompositePartValue[Single] (Int32 bindingIndex, Int32 partNumber) (at Library/PackageCache/com.unity.inputsystem@0.1.2-preview/InputSystem/Actions/InputActionMapState.cs:1197)
UnityEngine.Experimental.Input.InputBindingCompositeContext.ReadValue[Single] (Int32 partNumber) (at Library/PackageCache/com.unity.inputsystem@0.1.2-preview/InputSystem/Actions/InputBindingCompositeContext.cs:22)
UnityEngine.Experimental.Input.Composites.DpadComposite.ReadValue (UnityEngine.Experimental.Input.InputBindingCompositeContext& context) (at Library/PackageCache/com.unity.inputsystem@0.1.2-preview/InputSystem/Actions/Composites/DpadComposite.cs:36)
UnityEngine.Experimental.Input.InputActionMapState.ReadValue[Vector2] (Int32 bindingIndex, Int32 controlIndex, Boolean ignoreComposites) (at Library/PackageCache/com.unity.inputsystem@0.1.2-preview/InputSystem/Actions/InputActionMapState.cs:1150)
UnityEngine.Experimental.Input.InputAction+CallbackContext.ReadValue[Vector2] () (at Library/PackageCache/com.unity.inputsystem@0.1.2-preview/InputSystem/Actions/InputAction.cs:698)
Indicator.HandleMoveSaber (CallbackContext context) (at Assets/Game Elements/Nodes/Scripts/Indicator.cs:56)
UnityEngine.Experimental.Input.InputActionMapState.CallActionListeners (UnityEngine.Experimental.Input.InputActionMap actionMap, UnityEngine.Experimental.Input.Utilities.InlinedArray`1& listeners, UnityEngine.Experimental.Input.TriggerState& trigger) (at Library/PackageCache/com.unity.inputsystem@0.1.2-preview/InputSystem/Actions/InputActionMapState.cs:896)
UnityEngine.Experimental.Input.LowLevel.<>c__AnonStorey0:<>m__0(NativeInputUpdateType, Int32, IntPtr)
UnityEngineInternal.Input.NativeInputSystem:NotifyUpdate(NativeInputUpdateType, Int32, IntPtr) (at C:/buildslave/unity/build/Modules/Input/Private/Input.cs:91)

Here's my code:

Code (CSharp):

1. void Start()
2.  
3.     {
4.         nodeCollided = null;
5.         masterControl.lightSaberControls.LightsaberMovement.Enable();
6.         masterControl.lightSaberControls.LightsaberMovement.performed += HandleMoveSaber;
7.     }
8.  
9.     void HandleMoveSaber(InputAction.CallbackContext context)
10.     {
11.         Vector2 position = context.ReadValue<Vector2>();
12.         Debug.Log("Moving: " + position);
13.        
14.     /*    xpos = position.x;
15.         ypos = position.y;
16.         transform.localPosition = position;*/
17.     }

Can anyone help me?

 

Hmm, I thought I had gotten rid of all blind casting on that path. Could you paste me your .inputactions file?

My assumption is that the Dpad composite has a child binding that is indeed not a button/axis/key but it shouldn't just blindly throw an InvalidCastException but rather tell you where things went wrong.

 

Hi!
The .inputactions file type isn't supported for upload, so I'm posting a screenshot and the C sharp class that was generated.

Code (CSharp):

1. // GENERATED AUTOMATICALLY FROM 'Assets/MasterControl.inputactions'
2.  
3. using System;
4. using UnityEngine;
5. using UnityEngine.Experimental.Input;
6.  
7.  
8. [Serializable]
9. public class MasterControl : InputActionAssetReference
10. {
11.     public MasterControl()
12.     {
13.     }
14.     public MasterControl(InputActionAsset asset)
15.         : base(asset)
16.     {
17.     }
18.     private bool m_Initialized;
19.     private void Initialize()
20.     {
21.         // lightSaberControls
22.         m_lightSaberControls = asset.GetActionMap("lightSaberControls");
23.         m_lightSaberControls_Push = m_lightSaberControls.GetAction("Push");
24.         m_lightSaberControls_Movement = m_lightSaberControls.GetAction("Movement");
25.         m_lightSaberControls_LightsaberMovement = m_lightSaberControls.GetAction("LightsaberMovement");
26.         m_Initialized = true;
27.     }
28.     private void Uninitialize()
29.     {
30.         m_lightSaberControls = null;
31.         m_lightSaberControls_Push = null;
32.         m_lightSaberControls_Movement = null;
33.         m_lightSaberControls_LightsaberMovement = null;
34.         m_Initialized = false;
35.     }
36.     public void SetAsset(InputActionAsset newAsset)
37.     {
38.         if (newAsset == asset) return;
39.         if (m_Initialized) Uninitialize();
40.         asset = newAsset;
41.     }
42.     public override void MakePrivateCopyOfActions()
43.     {
44.         SetAsset(ScriptableObject.Instantiate(asset));
45.     }
46.     // lightSaberControls
47.     private InputActionMap m_lightSaberControls;
48.     private InputAction m_lightSaberControls_Push;
49.     private InputAction m_lightSaberControls_Movement;
50.     private InputAction m_lightSaberControls_LightsaberMovement;
51.     public struct LightSaberControlsActions
52.     {
53.         private MasterControl m_Wrapper;
54.         public LightSaberControlsActions(MasterControl wrapper) { m_Wrapper = wrapper; }
55.         public InputAction @Push { get { return m_Wrapper.m_lightSaberControls_Push; } }
56.         public InputAction @Movement { get { return m_Wrapper.m_lightSaberControls_Movement; } }
57.         public InputAction @LightsaberMovement { get { return m_Wrapper.m_lightSaberControls_LightsaberMovement; } }
58.         public InputActionMap Get() { return m_Wrapper.m_lightSaberControls; }
59.         public void Enable() { Get().Enable(); }
60.         public void Disable() { Get().Disable(); }
61.         public bool enabled { get { return Get().enabled; } }
62.         public InputActionMap Clone() { return Get().Clone(); }
63.         public static implicit operator InputActionMap(LightSaberControlsActions set) { return set.Get(); }
64.     }
65.     public LightSaberControlsActions @lightSaberControls
66.     {
67.         get
68.         {
69.             if (!m_Initialized) Initialize();
70.             return new LightSaberControlsActions(this);
71.         }
72.     }
73.     private int m_MouseandKeyboardSchemeIndex = -1;
74.     public InputControlScheme MouseandKeyboardScheme
75.     {
76.         get
77.  
78.         {
79.             if (m_MouseandKeyboardSchemeIndex == -1) m_MouseandKeyboardSchemeIndex = asset.GetControlSchemeIndex("Mouse and Keyboard");
80.             return asset.controlSchemes[m_MouseandKeyboardSchemeIndex];
81.         }
82.     }
83.     private int m_GamepadSchemeIndex = -1;
84.     public InputControlScheme GamepadScheme
85.     {
86.         get
87.  
88.         {
89.             if (m_GamepadSchemeIndex == -1) m_GamepadSchemeIndex = asset.GetControlSchemeIndex("Gamepad");
90.             return asset.controlSchemes[m_GamepadSchemeIndex];
91.         }
92.     }
93. }
94.  

I apologize if I'm doing something really stupid, like I said, I'm new to this.

Thanks for the help!

 

You can open the .inputactions file (and most other internal Unity files) in a text editor and copy that here - as long as you have asset serialization set to text (which is default)

 

Oh okay thanks!

Here's the file

Code (CSharp):

1. {
2.     "name": "MasterControl",
3.     "maps": [
4.         {
5.             "name": "lightSaberControls",
6.             "id": "1ef4e9e6-1432-4f33-84b2-d8b3453befbd",
7.             "actions": [
8.                 {
9.                     "name": "Push",
10.                     "id": "a14220ac-5b39-4b9d-ba30-e89a336e5d1d",
11.                     "expectedControlLayout": "Button",
12.                     "bindings": []
13.                 },
14.                 {
15.                     "name": "Movement",
16.                     "id": "db6124d2-149f-4d4a-992a-2fae440301c0",
17.                     "expectedControlLayout": "",
18.                     "bindings": []
19.                 },
20.                 {
21.                     "name": "LightsaberMovement",
22.                     "id": "d1ea5ee4-a9b0-42b5-ac6c-70b3585249a9",
23.                     "expectedControlLayout": "Dpad",
24.                     "bindings": []
25.                 }
26.             ],
27.             "bindings": [
28.                 {
29.                     "name": "",
30.                     "path": "<Keyboard>/f",
31.                     "interactions": "PressAndRelease",
32.                     "processors": "",
33.                     "groups": "Mouse and Keyboard",
34.                     "action": "Push",
35.                     "chainWithPrevious": false,
36.                     "isComposite": false,
37.                     "isPartOfComposite": false,
38.                     "modifiers": ""
39.                 },
40.                 {
41.                     "name": "",
42.                     "path": "<Gamepad>/rightStickPress",
43.                     "interactions": "PressAndRelease",
44.                     "processors": "",
45.                     "groups": ";Gamepad",
46.                     "action": "Push",
47.                     "chainWithPrevious": false,
48.                     "isComposite": false,
49.                     "isPartOfComposite": false,
50.                     "modifiers": ""
51.                 },
52.                 {
53.                     "name": "KeyboardMove",
54.                     "path": "Dpad",
55.                     "interactions": "",
56.                     "processors": "",
57.                     "groups": "",
58.                     "action": "Movement",
59.                     "chainWithPrevious": false,
60.                     "isComposite": true,
61.                     "isPartOfComposite": false,
62.                     "modifiers": ""
63.                 },
64.                 {
65.                     "name": "up",
66.                     "path": "<Keyboard>/w",
67.                     "interactions": "Hold(duration=1,repeat),Tap",
68.                     "processors": "",
69.                     "groups": ";Mouse and Keyboard",
70.                     "action": "Movement",
71.                     "chainWithPrevious": false,
72.                     "isComposite": false,
73.                     "isPartOfComposite": true,
74.                     "modifiers": ""
75.                 },
76.                 {
77.                     "name": "down",
78.                     "path": "<Keyboard>/s",
79.                     "interactions": "Hold(duration=2,repeat)",
80.                     "processors": "",
81.                     "groups": ";Mouse and Keyboard",
82.                     "action": "Movement",
83.                     "chainWithPrevious": false,
84.                     "isComposite": false,
85.                     "isPartOfComposite": true,
86.                     "modifiers": ""
87.                 },
88.                 {
89.                     "name": "left",
90.                     "path": "<Keyboard>/a",
91.                     "interactions": "Hold(duration=2,repeat)",
92.                     "processors": "",
93.                     "groups": ";Mouse and Keyboard",
94.                     "action": "Movement",
95.                     "chainWithPrevious": false,
96.                     "isComposite": false,
97.                     "isPartOfComposite": true,
98.                     "modifiers": ""
99.                 },
100.                 {
101.                     "name": "right",
102.                     "path": "<Keyboard>/d",
103.                     "interactions": "Hold(duration=2,repeat)",
104.                     "processors": "",
105.                     "groups": ";Mouse and Keyboard",
106.                     "action": "Movement",
107.                     "chainWithPrevious": false,
108.                     "isComposite": false,
109.                     "isPartOfComposite": true,
110.                     "modifiers": ""
111.                 },
112.                 {
113.                     "name": "GamepadMove",
114.                     "path": "Dpad",
115.                     "interactions": "Hold(repeat)",
116.                     "processors": "StickDeadzone(min=0.1,max=0.925)",
117.                     "groups": "",
118.                     "action": "Movement",
119.                     "chainWithPrevious": false,
120.                     "isComposite": true,
121.                     "isPartOfComposite": false,
122.                     "modifiers": ""
123.                 },
124.                 {
125.                     "name": "up",
126.                     "path": "<Gamepad>/leftStick/up",
127.                     "interactions": "",
128.                     "processors": "",
129.                     "groups": ";Gamepad",
130.                     "action": "Movement",
131.                     "chainWithPrevious": false,
132.                     "isComposite": false,
133.                     "isPartOfComposite": true,
134.                     "modifiers": ""
135.                 },
136.                 {
137.                     "name": "down",
138.                     "path": "<Gamepad>/leftStick/down",
139.                     "interactions": "",
140.                     "processors": "",
141.                     "groups": ";Gamepad",
142.                     "action": "Movement",
143.                     "chainWithPrevious": false,
144.                     "isComposite": false,
145.                     "isPartOfComposite": true,
146.                     "modifiers": ""
147.                 },
148.                 {
149.                     "name": "left",
150.                     "path": "<Gamepad>/leftStick/left",
151.                     "interactions": "",
152.                     "processors": "",
153.                     "groups": ";Gamepad",
154.                     "action": "Movement",
155.                     "chainWithPrevious": false,
156.                     "isComposite": false,
157.                     "isPartOfComposite": true,
158.                     "modifiers": ""
159.                 },
160.                 {
161.                     "name": "right",
162.                     "path": "<Gamepad>/leftStick/right",
163.                     "interactions": "Hold",
164.                     "processors": "StickDeadzone(max=1)",
165.                     "groups": ";Gamepad",
166.                     "action": "Movement",
167.                     "chainWithPrevious": false,
168.                     "isComposite": false,
169.                     "isPartOfComposite": true,
170.                     "modifiers": ""
171.                 },
172.                 {
173.                     "name": "GamepadControls",
174.                     "path": "Dpad",
175.                     "interactions": "",
176.                     "processors": "StickDeadzone(max=1)",
177.                     "groups": "",
178.                     "action": "LightsaberMovement",
179.                     "chainWithPrevious": false,
180.                     "isComposite": true,
181.                     "isPartOfComposite": false,
182.                     "modifiers": ""
183.                 },
184.                 {
185.                     "name": "up",
186.                     "path": "<Gamepad>/rightStick/up",
187.                     "interactions": "",
188.                     "processors": "StickDeadzone(max=1)",
189.                     "groups": ";Gamepad",
190.                     "action": "LightsaberMovement",
191.                     "chainWithPrevious": false,
192.                     "isComposite": false,
193.                     "isPartOfComposite": true,
194.                     "modifiers": ""
195.                 },
196.                 {
197.                     "name": "down",
198.                     "path": "<Gamepad>/rightStick/down",
199.                     "interactions": "",
200.                     "processors": "StickDeadzone(max=1)",
201.                     "groups": ";Gamepad",
202.                     "action": "LightsaberMovement",
203.                     "chainWithPrevious": false,
204.                     "isComposite": false,
205.                     "isPartOfComposite": true,
206.                     "modifiers": ""
207.                 },
208.                 {
209.                     "name": "left",
210.                     "path": "<Gamepad>/rightStick/left",
211.                     "interactions": "",
212.                     "processors": "StickDeadzone(max=1)",
213.                     "groups": ";Gamepad",
214.                     "action": "LightsaberMovement",
215.                     "chainWithPrevious": false,
216.                     "isComposite": false,
217.                     "isPartOfComposite": true,
218.                     "modifiers": ""
219.                 },
220.                 {
221.                     "name": "right",
222.                     "path": "<Gamepad>/rightStick/right",
223.                     "interactions": "",
224.                     "processors": "StickDeadzone(max=1)",
225.                     "groups": ";Gamepad",
226.                     "action": "LightsaberMovement",
227.                     "chainWithPrevious": false,
228.                     "isComposite": false,
229.                     "isPartOfComposite": true,
230.                     "modifiers": ""
231.                 },
232.                 {
233.                     "name": "MouseandKeyboardControls",
234.                     "path": "Dpad",
235.                     "interactions": "",
236.                     "processors": "StickDeadzone(max=1)",
237.                     "groups": "",
238.                     "action": "LightsaberMovement",
239.                     "chainWithPrevious": false,
240.                     "isComposite": true,
241.                     "isPartOfComposite": false,
242.                     "modifiers": ""
243.                 },
244.                 {
245.                     "name": "up",
246.                     "path": "<Keyboard>/i",
247.                     "interactions": "",
248.                     "processors": "StickDeadzone(max=0.2)",
249.                     "groups": ";Mouse and Keyboard",
250.                     "action": "LightsaberMovement",
251.                     "chainWithPrevious": false,
252.                     "isComposite": false,
253.                     "isPartOfComposite": true,
254.                     "modifiers": ""
255.                 },
256.                 {
257.                     "name": "down",
258.                     "path": "<Keyboard>/k",
259.                     "interactions": "",
260.                     "processors": "StickDeadzone(max=0.1)",
261.                     "groups": ";Mouse and Keyboard",
262.                     "action": "LightsaberMovement",
263.                     "chainWithPrevious": false,
264.                     "isComposite": false,
265.                     "isPartOfComposite": true,
266.                     "modifiers": ""
267.                 },
268.                 {
269.                     "name": "left",
270.                     "path": "<Keyboard>/j",
271.                     "interactions": "",
272.                     "processors": "StickDeadzone(max=0.1)",
273.                     "groups": ";Mouse and Keyboard",
274.                     "action": "LightsaberMovement",
275.                     "chainWithPrevious": false,
276.                     "isComposite": false,
277.                     "isPartOfComposite": true,
278.                     "modifiers": ""
279.                 },
280.                 {
281.                     "name": "right",
282.                     "path": "<Keyboard>/l",
283.                     "interactions": "",
284.                     "processors": "StickDeadzone(max=0.1)",
285.                     "groups": ";Mouse and Keyboard",
286.                     "action": "LightsaberMovement",
287.                     "chainWithPrevious": false,
288.                     "isComposite": false,
289.                     "isPartOfComposite": true,
290.                     "modifiers": ""
291.                 }
292.             ]
293.         }
294.     ],
295.     "controlSchemes": [
296.         {
297.             "name": "Mouse and Keyboard",
298.             "basedOn": "",
299.             "bindingGroup": "Mouse and Keyboard",
300.             "devices": [
301.                 {
302.                     "devicePath": "<Keyboard>",
303.                     "isOptional": false,
304.                     "isOR": false
305.                 },
306.                 {
307.                     "devicePath": "<Mouse>",
308.                     "isOptional": false,
309.                     "isOR": false
310.                 }
311.             ]
312.         },
313.         {
314.             "name": "Gamepad",
315.             "basedOn": "",
316.             "bindingGroup": "Gamepad",
317.             "devices": [
318.                 {
319.                     "devicePath": "<Gamepad>",
320.                     "isOptional": false,
321.                     "isOR": false
322.                 }
323.             ]
324.         }
325.     ]
326. }

 

uhm is there a answer? I have got the same problem

 

Hi, I had the very same problem and I solved it this way.

I had this configuration => not working


Why is not working the Vector2 conversion? because I defined the ActionType of the Action JoystickMove as a Button, and then all the move actions will translate in single floats not in Vector2.

The solution is in this order:
- Remove all the Stick movements mapped
- Change the ActionType of your Action to "Value" and "Any" as you can see in the screenshot below
- Map only the stick of your control

Now I have this configuration and => is working


I hope this solution can work for you also!

 

An InvalidCastException is thrown when cast from one type to another type is not supported. In some reference type conversions , the compiler cannot determine whether a cast will be valid. It is because of the source type cannot be converted to the destination type , so the cast does not succeed.It is important to note that this exception is caused by programming error and should not be handled in a try/catch block; instead, the cause of the exception should be eliminated. C# provides the "is" operator to enable you to test for compatibility before actually performing a cast operation . It will checks if the runtime type of an expression result is compatible with a given type.

 

I had the same problem after copying my project to a new folder, specifically:

InvalidCastException: Specified cast is not valid. UnityEngine.InputSystem.Editor.InputAction Importer Editor.GetAsset () (at Library/PackageCache/com.unity.inputsystem@1.0.0/InputSystem/Editor/AssetImporter/InputActionImporterEditor.cs:84)

None of the above solutions worked for me. Steps I took to resolve:

1. Open old InputActions.cs file in text editor
2. Delete old InputActions.cs and InputActions.inputactions file
3. Right click in Project window and create a new Input Actions file
4. Select the new Input Actions file, toggle generate C# class, open generated C# class in text editor
5. Paste old InputActions.cs code into new generated C# class

 

Does "Unity XR Input" still work with this OpenXR plugin?

https://docs.unity3d.com/Manual/xr_input.html

My game uses XR Input and the old input manager to query the input states, what I found so far is that the buttons on the VR controllers seem working fine but the axis input are missing. Is this expected?