Transforming JavaScript decorators to the configured target environment ("nodeXX.Y.Z") is not supported yet

[darcyrush]

I already checked 3482 and filed an issue with tsx (which uses esbuild under the hood), who in turn requested to file the issue here.

I am using the nestjs framework's decorators along with tsx and a tsconfig.json with "experimentalDecorators": true but the issue persists.

I am using node 21.2.0 and tsx 4.1.2 on linux.

Here is a minimal reproduction repository

[evanw]

If you run your code through esbuild without tsx involved then it works fine: https://esbuild.github.io/try/#dAAwLjE5LjUAewogIGxvYWRlcjogJ3RzJywKICB0YXJnZXQ6IFsnbm9kZTIxLjIuMCddLAogIHRzY29uZmlnUmF3OiB7CiAgICBjb21waWxlck9wdGlvbnM6IHsKICAgICAgZXhwZXJpbWVudGFsRGVjb3JhdG9yczogdHJ1ZSwKICAgIH0sCiAgfSwKfQBpbXBvcnQgeyBDb250cm9sbGVyLCBHZXQgfSBmcm9tICJAbmVzdGpzL2NvbW1vbiIKCkBDb250cm9sbGVyKCkKZXhwb3J0IGNsYXNzIEhlYWx0aENvbnRyb2xsZXIgewogIEBHZXQoJ2hlYWx0aC9yZWFkaW5lc3MnKQogIGFzeW5jIHJlYWRpbmVzcygpOiBQcm9taXNlPHZvaWQ+IHsgfQp9. I only get that error if I set experimentalDecorators: false. So the problem appears to be with tsx, not with esbuild. Perhaps something about your tsconfig.json file isn't making it through tsx to esbuild? That would need to be fixed by tsx.

[privatenumber]

Confirming it's an issue with tsx. Sorry about the oversight.

[evanw]

No problem!

[RobertAKARobin]

@privatenumber How did you end up resolving this?

Edit: Ah, I see you're the creator of TSX and it's on the roadmap. @darcyrush Did you find a workaround?

Further edit: Never mind, here's the relevant discussion: privatenumber/tsx#393 (comment)