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Failing to build with 2.0: Error: Cannot find module 'wait-file'

See original GitHub issue

Have you read the Contributing Guidelines on issues?

I have read the Contributing Guidelines on issues.

Prerequisites

I’m using the latest version of Docusaurus.
I have tried the npm run clear or yarn clear command.
I have tried rm -rf node_modules yarn.lock package-lock.json and re-installing packages.
I have tried creating a repro with https://new.docusaurus.io.
I have read the console error message carefully (if applicable).

Description

When I try to build with Docusaurus 2.0 I experience an error which you can see here

> docusaurus build

node:internal/modules/cjs/loader:933
  const err = new Error(message);
              ^

Error: Cannot find module 'wait-file'
Require stack:
- /home/runner/work/blog.johnnyreilly.com/blog.johnnyreilly.com/blog-website/node_modules/@docusaurus/core/lib/webpack/plugins/WaitPlugin.js
- /home/runner/work/blog.johnnyreilly.com/blog.johnnyreilly.com/blog-website/node_modules/@docusaurus/core/lib/webpack/server.js
- /home/runner/work/blog.johnnyreilly.com/blog.johnnyreilly.com/blog-website/node_modules/@docusaurus/core/lib/commands/build.js
- /home/runner/work/blog.johnnyreilly.com/blog.johnnyreilly.com/blog-website/node_modules/@docusaurus/core/lib/index.js
    at Function.Module._resolveFilename (node:internal/modules/cjs/loader:933:15)
    at Function.Module._load (node:internal/modules/cjs/loader:[77](https://github.com/johnnyreilly/blog.johnnyreilly.com/runs/7605731556?check_suite_focus=true#step:4:78)8:27)
    at Module.require (node:internal/modules/cjs/loader:1005:19)
    at require (node:internal/modules/cjs/helpers:102:18)
    at Object.<anonymous> (/home/runner/work/blog.johnnyreilly.com/blog.johnnyreilly.com/blog-website/node_modules/@docusaurus/core/lib/webpack/plugins/WaitPlugin.js:10:20)
    at Module._compile (node:internal/modules/cjs/loader:1105:14)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1159:10)
    at Module.load (node:internal/modules/cjs/loader:9[81](https://github.com/johnnyreilly/blog.johnnyreilly.com/runs/7605731556?check_suite_focus=true#step:4:82):32)
    at Function.Module._load (node:internal/modules/cjs/loader:[82](https://github.com/johnnyreilly/blog.johnnyreilly.com/runs/7605731556?check_suite_focus=true#step:4:83)2:12)
    at Module.require (node:internal/modules/cjs/loader:1005:19) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
    '/home/runner/work/blog.johnnyreilly.com/blog.johnnyreilly.com/blog-website/node_modules/@docusaurus/core/lib/webpack/plugins/WaitPlugin.js',
    '/home/runner/work/blog.johnnyreilly.com/blog.johnnyreilly.com/blog-website/node_modules/@docusaurus/core/lib/webpack/server.js',
    '/home/runner/work/blog.johnnyreilly.com/blog.johnnyreilly.com/blog-website/node_modules/@docusaurus/core/lib/commands/build.js',
    '/home/runner/work/blog.johnnyreilly.com/blog.johnnyreilly.com/blog-website/node_modules/@docusaurus/core/lib/index.js'
  ]
}
Error: Process completed with exit code 1.