Question Changing the source does not change the build result.

Hello.

I once did a WebGL build with the wrong source.
I changed the source and did a WebGL build again.
However, the content of the error does not change.
Does Unity have a cache or something?
Do you have any idea?

Thank you.

Console Error

WebSocket connection error:  DOMException: Failed to construct 'WebSocket': The URL 'ws://xxx.xxx.xxx.2206:xxxxx' is invalid.

    at _WebSocketConnectA (http://localhost:49673/Build/build.framework.js:3:69377)

    at http://localhost:49673/Build/build.wasm:wasm-function[25286]:0x90d342

    at http://localhost:49673/Build/build.wasm:wasm-function[25284]:0x90d322

    at http://localhost:49673/Build/build.wasm:wasm-function[53760]:0x117dba0

    at http://localhost:49673/Build/build.wasm:wasm-function[52270]:0x114472d

    at http://localhost:49673/Build/build.wasm:wasm-function[10552]:0x31eeeb

    at http://localhost:49673/Build/build.wasm:wasm-function[41794]:0xe01d17

    at invoke_iiii (http://localhost:49673/Build/build.framework.js:3:390009)

    at http://localhost:49673/Build/build.wasm:wasm-function[1868]:0x9b62c

    at http://localhost:49673/Build/build.wasm:wasm-function[22201]:0x726dc7

    at http://localhost:49673/Build/build.wasm:wasm-function[907]:0x6bada

    at http://localhost:49673/Build/build.wasm:wasm-function[5549]:0x184735

    at http://localhost:49673/Build/build.wasm:wasm-function[50158]:0x10cd47f

    at http://localhost:49673/Build/build.wasm:wasm-function[45588]:0xee44e2

    at http://localhost:49673/Build/build.wasm:wasm-function[44608]:0xe788e3

    at http://localhost:49673/Build/build.wasm:wasm-function[24000]:0x87c8ea

    at http://localhost:49673/Build/build.wasm:wasm-function[24000]:0x87c95b

    at http://localhost:49673/Build/build.wasm:wasm-function[21179]:0x6802f6

    at http://localhost:49673/Build/build.wasm:wasm-function[41786]:0xe01c99

    at browserIterationFunc (http://localhost:49673/Build/build.framework.js:3:225456)

    at callUserCallback (http://localhost:49673/Build/build.framework.js:3:178654)

    at Object.runIter (http://localhost:49673/Build/build.framework.js:3:179914)

    at Browser_mainLoop_runner (http://localhost:49673/Build/build.framework.js:3:178189)

_WebSocketConnectA @ build.framework.js:3

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using System.Runtime.InteropServices;
5.  
6. public class TestWS4 : MonoBehaviour
7. {
8.  
9.     [SerializeField]
10.     //private string url = "ws://xxx.xxx.xxx.2206:xxxxx";
11.     private string url = "ws://xxx.xxx.xxx.206:xxxxx";
12.  
13.     [DllImport("__Internal")]
14.     private static extern void WebSocketConnectA(string url);
15.  
16.     [DllImport("__Internal")]
17.     private static extern void WebSocketSendA(string data);
18.  
19.     [DllImport("__Internal")]
20.     private static extern void WebSocketCloseA();
21.  
22.     [DllImport("__Internal")]
23.     private static extern void WindowAlert(string str); // window.alert()
24.  
25.     private void Start()
26.     {
27.         Connect();
28.  
29.     }
30.  
31.     private void Update()
32.     {
33.         if (Input.GetKey("w"))
34.         {
35.             Send("test");
36.         }
37.     }
38.  
39.     public void Connect()
40.     {
41.         WebSocketConnectA(url);
42.     }
43.  
44.     public void Send(string data)
45.     {
46.         WebSocketSendA(data);
47.     }
48.  
49.     public void Close()
50.     {
51.         WebSocketCloseA();
52.     }
53.  
54.     public void OnWebSocketConnected()
55.     {
56.         WindowAlert("WebSocket connected");
57.     }
58.  
59.     public void OnWebSocketReceived(string message)
60.     {
61.         WindowAlert("Unity WebSocket received: " + message);
62.     }
63.  
64.     public void OnWebSocketClosed()
65.     {
66.         WindowAlert("WebSocket closed");
67.     }
68.  
69. }

Code (JavaScript):

1. mergeInto(LibraryManager.library, {
2.   ws: null,
3.  
4.   WebSocketConnectA: function(urlPtr) {
5.     try {
6.       // Convert the pointer to a string
7.       var url = UTF8ToString(urlPtr);
8.  
9.       // WebSocket connection process
10.       this.ws = new WebSocket(url);
11.  
12.       // WebSocket open event handler
13.       this.ws.onopen = function(event) {
14.         // Call WebSocket connection success event on the Unity side
15.         myGameInstance.SendMessage("GameObject", "OnWebSocketConnected");
16.       };
17.  
18.       // WebSocket message event handler
19.       this.ws.onmessage = function(event) {
20.         // Call WebSocket receive event on the Unity side
21.         myGameInstance.SendMessage("GameObject", "OnWebSocketReceived", event.data);
22.       };
23.  
24.       // WebSocket close event handler
25.       this.ws.onclose = function(event) {
26.         // Call WebSocket close event on the Unity side
27.         myGameInstance.SendMessage("GameObject", "OnWebSocketClosed");
28.       };
29.  
30.       // WebSocket error event handler
31.       this.ws.onerror = function(event) {
32.         console.error("WebSocket error: ", event);
33.       };
34.     } catch (error) {
35.       console.error("WebSocket connection error: ", error);
36.     }
37.   },
38.  
39.   WebSocketSendA: function(data) {
40.     try {
41.       // WebSocket data sending process
42.       this.ws.send(UTF8ToString(data));
43.     } catch (error) {
44.       console.error("WebSocket send error: ", error);
45.     }
46.   },
47.  
48.   WebSocketCloseA: function() {
49.     try {
50.       // WebSocket closing process
51.       this.ws.close();
52.     } catch (error) {
53.       console.error("WebSocket close error: ", error);
54.     }
55.   },
56.  
57.   WindowAlert: function (str) {
58.     window.alert(UTF8ToString(str));
59.   },
60.  
61.   ConsoleLog: function (str) {
62.     console.log(str);
63.   },
64.  
65. });

 

Try clearing the browser cache, or run it in a different browser.

Make sure to delete the build folder and the folder on the webserver (if you upload it) to make sure you are doing a clean build/install.

 

Thank you.
I tried those methods. But the execution result was the same.
Are there other factors affecting it?

 

Well maybe you didn‘t change the code in a way that fixes the issue?
Maybe it‘s as simple as accidentally uploading the wrong build. Check what happens if you do Build & Run.