🐛 BUG: Using `@astrojs/mdx` with `astro.config.ts` fails to start

What version of astro are you using?

1.0.0-rc.1

Are you using an SSR adapter? If so, which one?

None

What package manager are you using?

npm

What operating system are you using?

Linux

Describe the Bug

In with-mdx example, changing the config file to astro.config.ts throws an error:

 error   No "exports" main defined in /home/pinanek23/workspace/dev/bug/mdx-ts/node_modules/estree-walker/package.json
    at new NodeError (node:internal/errors:372:5)
    at throwExportsNotFound (node:internal/modules/esm/resolve:472:9)
    at packageExportsResolve (node:internal/modules/esm/resolve:693:7)
    at resolveExports (node:internal/modules/cjs/loader:482:36)
    at Function.Module._findPath (node:internal/modules/cjs/loader:522:31)
    at Function.Module._resolveFilename (node:internal/modules/cjs/loader:919:27)
    at Function.Module._load (node:internal/modules/cjs/loader:778:27)
    at Module.require (node:internal/modules/cjs/loader:1005:19)
    at require (node:internal/modules/cjs/helpers:102:18)
    at Object.<anonymous> (/home/pinanek23/workspace/dev/bug/mdx-ts/node_modules/estree-util-build-jsx/lib/index.js:23:28)

Link to Minimal Reproducible Example

https://stackblitz.com/edit/github-akf9du?file=astro.config.ts

Participation

• I am willing to submit a pull request for this issue.

[ndaba1]

I am facing the same issue here.... I think it's a problem with the @astro/mdx plugin since Im using 1.0.0-rc.2 with an astro.config.js file but the app fails to start.

This is the error that I get. I'm on windows with npm....

Here's my config

import { defineConfig } from "astro/config";
import mdx from "@astrojs/mdx";
import tailwind from "@astrojs/tailwind";
import react from "@astrojs/react";
import vue from "@astrojs/vue";

// https://astro.build/config
export default defineConfig({
  integrations: [mdx(), react(), tailwind(), vue()],
});

[QuiiBz]

I think it's due to Rich-Harris/estree-walker#26. estree-walker@>=3.0.0 seems to have this issue, but not estree-walker@2.0.x

[matthewp]

@ndaba1 can you provide a reproduction? I'm not sure if the issue you're experiencing is the same as the one being reported here.

[matthewp]

https://stackblitz.com/edit/github-xsoxnr?file=package.json,astro.config.mjs,src%2Fpages%2Findex.astro,src%2Fpages%2Fpage.mdx&on=stackblitz

[ndaba1]

@matthewp, it fails even in the plain with-mdx example. I've been getting some help from the discord server and this seems to be a windows issue only. It works perfectly well in wsl

[Alxandr]

@ndaba1 I'm havving this issue on linux - so definitely not a windows only issue...

[Edit]
I found a workaround though - make the config-file a astro.config.mjs file (not mts).

[tanepiper]

Also getting the same issue on OSX trying to use it with 1.0.0-rc.3 - we have .ts config files

[matthewp]

Was able to break in a test: 60687f5