Formatting doesn't work (with newly released Prettier v2.1.0)

With Prettier v2.1.0, VSCode stops formatting .svelte files and the Svelte VSCode extension runs into Error: unknown node type: undefined pointing to prettier-plugin-svelte in the stacktrace as culprit.

[x4080]

@michaelwooley cool

Edited : Seems still not working for me (no formatter found etc)

My settings :

{
  "[svelte]": {
    "editor.formatOnSave": true,
    "editor.defaultFormatter": "svelte.svelte-vscode"
  }
}

What is your configuration @michaelwooley ?

My configuration that works currently :

{
  "files.associations": {"*.svelte": "html" },
  "[svelte]": {
    "editor.formatOnSave": true,
    "editor.defaultFormatter": "svelte.svelte-vscode"
  }
}

But I think format on save not working

[dummdidumm]

How to get this working again

1. If you use the VSCode extension, make sure you have version 101.11.0 or higher installed
2. Delete your node_modules where your npm/yarn installs live
3. Update your package.json: If you have svelte-check / prettier-plugin-svelte / svelte-language-server in there, set them to the latest version. If you don’t have them in there, you don’t have to install them
4. reinstall (npm i / yarn install)

More indepth

We deployed an update of the VSCode extension which contains the v1.1.1 of prettier-plugin-svelte. It leaves Prettier at 2.0.5 to wait for some more bug fixes, but if you have a different Prettier version in your workspace then that one is used instead.

To get formatting again, you also have to update your prettier-plugin-svelte version in your workspace, which you have installed if you installed svelte-check. Simply update svelte-check for that. If you did not install svelte-check or prettier-plugin-svelte directly, you can skip this.

Reason why you need to do this: Prettier will load prettier-plugin-svelte from both your workspace and our VSCode extension, but for some reason does use the workspace version for parsing and the extension version for formatting, which will break.