Following the tutorial, `TypeError blitzServer.at is not a function` on blitz generate | Blitz.js | Page 1

Hi all,

I'm trying the Blitz tutorial. However, blitz g didn't work for me. Any idea what's going on?

> blitz new first-blitz-app
(all default setting, TypeScript, Full, npm, React Final Form)
> cd first-blitz-app
> blitz dev
> blitz generate all question text:string
Loaded env from /Users/yllan/Projects/lab/first-blitz-app/.env.local
Loaded env from /Users/yllan/Projects/lab/first-blitz-app/.env
TypeError: blitzServer.at is not a function
    at /Users/yllan/.nvm/versions/node/v16.4.0/lib/node_modules/blitz/node_modules/@blitzjs/generator/dist/index.cjs:309:75
    at Generator.next (<anonymous>)
    at fulfilled (/Users/yllan/.nvm/versions/node/v16.4.0/lib/node_modules/blitz/node_modules/@blitzjs/generator/dist/index.cjs:273:24)

Here is my blitz -v information:

Blitz version: 2.0.0-beta.19 (global)
macOS Monterey | darwin-x64 | Node: v16.4.0


 Package manager: npm

  System:
    OS: macOS 12.6
    CPU: (12) x64 Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
    Memory: 833.39 MB / 16.00 GB
    Shell: 5.8.1 - /bin/zsh
  Binaries:
    Node: 16.4.0 - ~/.nvm/versions/node/v16.4.0/bin/node
    Yarn: 1.22.17 - ~/.yarn/bin/yarn
    npm: 8.4.1 - ~/.nvm/versions/node/v16.4.0/bin/npm
  npmPackages:
    @blitzjs/auth: Not Found
    @blitzjs/next: Not Found
    @blitzjs/rpc: Not Found
    @prisma/client: Not Found
    blitz: Not Found
    next: Not Found
    prisma: Not Found
    react: Not Found
    react-dom: Not Found
    typescript: Not Found

#Following the tutorial, `TypeError blitzServer.at is not a function` on blitz generate