Failed to asynchronously prepare wasm

Unity Engine
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1

I’m trying to deploy a WebGL build to Github. To make things simple I created an empty project with nothing in it and then did a WebGL Build. I get the following error. This seems like a bug to me b/c it’s happening with an completely empty project (using the Universal Render Pipeline). Any ideas?

WebGLTest.loader.js:1 failed to asynchronously prepare wasm: CompileError: WebAssembly.instantiate(): expected magic word 00 61 73 6d, found 76 65 72 73 @+0
printErr @ WebGLTest.loader.js:1Understand this error
WebGLTest.loader.js:1 CompileError: WebAssembly.instantiate(): expected magic word 00 61 73 6d, found 76 65 72 73 @+0
WebGLTest.loader.js:1 CompileError: WebAssembly.instantiate(): expected magic word 00 61 73 6d, found 76 65 72 73 @+0
printErr @ WebGLTest.loader.js:1Understand this error
650c77c9-9695-44ec-8bd6-15f51d6ff6ba:10 navigator.mediaDevices support available
WebGLTest.loader.js:1 [UnityCache] ‘https://jnnilson.github.io/WebGLTest5/Build/WebGLTest.data’ successfully downloaded and stored in the indexedDB cache

2

Hi!

I looked at your deployed build under: Unity WebGL Player | WebGLTest and it looks like it is an issue with git-lfs. Your repository uses git-lfs for the WebAssembly file.

When the page tries to load https://jnnilson.github.io/WebGLTest5/Build/WebGLTest.wasm
It receives this instead of the actual WebAssembly file:

version https://git-lfs.github.com/spec/v1
oid sha256:42359ee2ee21a308b52e646d933a91d6ca3ed394a0235c11ec13760dc927f51e
size 55223409

I think it should work if you disable git-lfs for the whole repository or just for the WebAssembly files and try again.