A modern programming language that makes developers happier.

kotlinlang

How do I trace such a bug on wasmJs browser sub target?

```WebAssembly.instantiateStreaming(): struct.new[2] expected type (ref null 17), found ref.null of type nullref @+9286076
CompileError: WebAssembly.instantiateStreaming(): struct.new[2] expected type (ref null 17), found ref.null of type nullref @+9286076```
The console doesn't print anything useful as well

Hi, is it possible to share sources produce this issue?

The project is too big to share, and it is also private.

But if you can help me on how to debug this, so that I can try to create at least minimal reproducer. Other than that, it is really hard for me to debug this

You can try to install IJ Hexana plugin. Open non-optimised (in build/compileSync/wasmJs/main/developmentExecutable/...) .wasm file with it and in WAT tab and find the offset to see, what part wasm file is broken.

The offset should be from that file, of course :slightly_smiling_face:

But `expected type (ref null 17), found ref.null of type nullref` looks a bit weird...expecting `null 17` but found `nullref` which is bottom type...