Webgl Build Failed

Unity Engine
,
1

So I am creating a unity webgl game. I want my script to know at runtime if the webgl game in the browser is on Desktop or A mobile device so I used the following method:
-I created a file named “MyPlugin.jslib” in Assets/Plugins/webgl/MyPlugin.jslib
that isn what i wrote inside this file:

var MyPlugin = {
IsMobile: function()
{
return Module.SystemInfo.mobile;
}
};
mergeInto(LibraryManager.library, MyPlugin);

-Then I added following to my unity script:

using System.Runtime.InteropServices;
#region WebGL is on mobile check
[DllImport(“__Internal”)]
private static extern bool IsMobile();
public bool isMobile()
{
#if !UNITY_EDITOR && UNITY_WEBGL
return IsMobile();
#endif
return false;
}
#endregion

I used bool isMobile() to Check if the device on which my webgl game is running is a mobile device or not. Everything worked fun in editor. But when I sarted to build the game. The build failed and these errors showed:

'Library\Bee\artifacts\WebGL\build\debug_WebGL_wasm\build.js: undefined symbol: IsMobile (referenced by top-level compiled C/C++ code)
UnityEditor.BuildPlayerWindow:BuildPlayerAndRun ()’
'Building Library\Bee\artifacts\WebGL\build\debug_WebGL_wasm\build.js failed with output:
error: undefined symbol: IsMobile (referenced by top-level compiled C/C++ code)
warning: Link with -s LLD_REPORT_UNDEFINED to get more information on undefined symbols
warning: To disable errors for undefined symbols use -s ERROR_ON_UNDEFINED_SYMBOLS=0
warning: _IsMobile may need to be added to EXPORTED_FUNCTIONS if it arrives from a system library
Error: Aborting compilation due to previous errors
emcc2: error: ‘“C:/Software/unity 2021 new/2021.3.11f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/Emscripten/node/node.exe” “C:\Software\unity 2021 new\2021.3.11f1\Editor\Data\PlaybackEngines\WebGLSupport\BuildTools\Emscripten\emscripten\src\compiler.js” C:\Users\Hp\AppData\Local\Temp\tmpjf_g3fkj.txt’ failed (1)
UnityEditor.BuildPlayerWindow:BuildPlayerAndRun ()
’
Please help resolve this and if there is some other way from which I can check device type then that will work too. Thanks

2

It looks like you’re doing everything correctly.

Is your plugin marked (in the inspector) to be included with WebGL?

That should be automatic but since you lowercased the Plugins/webgl/ directory, maybe it didn’t get set?

3

Yes the webgl is check. and my project is also on webgl platform

4

Like I said, it really looks like you’re doing it all correctly then.

Perhaps try reimport all??

Here was the guide I followed and it worked fine:

Perhaps try it in a blank project???