$ npx @docusaurus/init@next init my-website classic
$ cd my-website/
$ npm install --save @aldridged/docusaurus-plugin-lunr
$ vi docusaurus.config.js # Add => plugins: ['@aldridged/docusaurus-plugin-lunr']
$ npm run build
> my-website@0.0.0 build /Users/jgoyeau/IdeaProjects/my-website
> docusaurus build
Creating an optimized production build...
Error: Cannot find module '@aldridged/docusaurus-plugin-lunr'
Require stack:
- /Users/jgoyeau/IdeaProjects/my-website
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:976:15)
at Function.resolve (internal/modules/cjs/helpers.js:78:19)
at /Users/jgoyeau/IdeaProjects/my-website/node_modules/@docusaurus/core/lib/server/plugins/init.js:40:67
at Array.map (<anonymous>)
at Object.initPlugins (/Users/jgoyeau/IdeaProjects/my-website/node_modules/@docusaurus/core/lib/server/plugins/init.js:22:10)
at Object.loadPlugins (/Users/jgoyeau/IdeaProjects/my-website/node_modules/@docusaurus/core/lib/server/plugins/index.js:47:28)
at Object.load (/Users/jgoyeau/IdeaProjects/my-website/node_modules/@docusaurus/core/lib/server/index.js:57:62)
at build (/Users/jgoyeau/IdeaProjects/my-website/node_modules/@docusaurus/core/lib/commands/build.js:59:34)
at /Users/jgoyeau/IdeaProjects/my-website/node_modules/@docusaurus/core/bin/docusaurus.js:29:5
at Command.<anonymous> (/Users/jgoyeau/IdeaProjects/my-website/node_modules/@docusaurus/core/bin/docusaurus.js:53:23)
at Command.listener (/Users/jgoyeau/IdeaProjects/my-website/node_modules/commander/index.js:370:29)
at Command.emit (events.js:315:20)
at Command.parseArgs (/Users/jgoyeau/IdeaProjects/my-website/node_modules/commander/index.js:892:12)
at Command.parse (/Users/jgoyeau/IdeaProjects/my-website/node_modules/commander/index.js:642:21)
at Object.<anonymous> (/Users/jgoyeau/IdeaProjects/my-website/node_modules/@docusaurus/core/bin/docusaurus.js:120:5)
at Module._compile (internal/modules/cjs/loader.js:1147:30)
Any idea what step I missed?