both async and sync fetching of the wasm failed. WebGL build error.

Hello, I have this problem “both async and sync fetching of the wasm failed” when I run my WebGL unity build locally. I’m not using sync and async. Can you tell me how to solve this problem? I new in WebGL builds.

There is this thread I found that might have the solution to our problem, but I honestly cannot find one myself. If you find one would you mind giving me some help?

https://forum.unity.com/threads/webgl-both-async-and-sync-fetching-of-the-wasm-failed-build-and-runs-works-fails-when-uploading.944400/

I know it’s been a while since you posted this, but personally, it helped me to upload it to itch.io . I have no idea why it can’t be played locally… But it should work once uploaded.