plugin-ruby: Crashing when run in VSCode on save

I used to run prettier on save with this VSCode extension. It used to work like a charm, but stopped working some time ago. I tried with versions 1.6.1 and 2.0.0-rc3. With both versions, prettier crashes, but the later version gives a better error message.

It’s probably something on my side that is going wrong I guess? Because if it wouldn’t work with that extension, you’d already have a lot of people reporting this I guess. But I don’t know what I can do to make this work.

This is the output I get:

["INFO" - 1:19:12 PM] Extension Name: esbenp.prettier-vscode.
["INFO" - 1:19:12 PM] Extension Version: 9.0.0.
["INFO" - 1:19:15 PM] Formatting file:///Users/mmainz/code/ears/lib/ears/middlewares/max_retries.rb
["INFO" - 1:19:15 PM] Using config file at '/Users/mmainz/code/ears/package.json'
["INFO" - 1:19:15 PM] Using ignore file (if present) at /Users/mmainz/code/ears/.prettierignore
["INFO" - 1:19:15 PM] File Info:
{
  "ignored": false,
  "inferredParser": "ruby"
}
["INFO" - 1:19:15 PM] Detected local configuration (i.e. .prettierrc or .editorconfig), VS Code configuration will not be used
["INFO" - 1:19:15 PM] Prettier Options:
{
  "filepath": "/Users/mmainz/code/ears/lib/ears/middlewares/max_retries.rb",
  "parser": "ruby",
  "singleQuote": true,
  "trailingComma": "all",
  "useTabs": false
}
["ERROR" - 1:19:20 PM] Error formatting document.
Error: 
      We failed to spawn our parser server. Please report this error on GitHub
      at https://github.com/prettier/plugin-ruby. The error message was:

        /Users/mmainz/code/ears/node_modules/@prettier/plugin-ruby/dist/parser/getInfo.js:8
  throw new Error("Failed to get information from parse server in time.");
  ^

Error: Failed to get information from parse server in time.
    at Timeout._onTimeout (/Users/mmainz/code/ears/node_modules/@prettier/plugin-ruby/dist/parser/getInfo.js:8:9)
    at listOnTimeout (node:internal/timers:557:17)
    at processTimers (node:internal/timers:500:7)
.
    
    at spawnServer (/Users/mmainz/code/ears/node_modules/@prettier/plugin-ruby/dist/parser/parseSync.js:88:15)
    at parseSync (/Users/mmainz/code/ears/node_modules/@prettier/plugin-ruby/dist/parser/parseSync.js:118:22)
    at Object.parse (/Users/mmainz/code/ears/node_modules/@prettier/plugin-ruby/dist/ruby/parser.js:13:40)
    at Object.parse$a [as parse] (/Users/mmainz/code/ears/node_modules/prettier/index.js:12513:19)
    at coreFormat (/Users/mmainz/code/ears/node_modules/prettier/index.js:14044:16)
    at formatWithCursor$1 (/Users/mmainz/code/ears/node_modules/prettier/index.js:14284:14)
    at /Users/mmainz/code/ears/node_modules/prettier/index.js:59304:12
    at Object.Success [as format] (/Users/mmainz/code/ears/node_modules/prettier/index.js:59324:12)
    at t.default.<anonymous> (/Users/mmainz/.vscode/extensions/esbenp.prettier-vscode-9.0.0/src/PrettierEditService.ts:434:45)
    at Generator.next (<anonymous>)
    at s (/Users/mmainz/.vscode/extensions/esbenp.prettier-vscode-9.0.0/dist/extension.js:1:7872)
["INFO" - 1:19:20 PM] Formatting completed in 5.23ms.

Metadata

• Operating system: Mac OS Big Sur
• Ruby version: 3.0.2
• Node version: 16.9.0
• @prettier/plugin-ruby or prettier gem version: 2.0.0-rc3