Cannot resolve module(s)

[monte-hayward]

It appears that npm is trying to resolve modules in the current directory, rather than in node_modules.
I get about 10 of these messages, each about a different module.

ERROR in ./docs/install/index.jsx
Module not found: Error: Cannot resolve module 'react-highlight/lib/optimized' in /work/path/react-foundation-apps/docs/install
@ ./docs/install/index.jsx 6:16-56

My installation was simple:
clone
npm install // had to repeat this after getting XCode 7.0.1
npm start

[monte-hayward]

Same set of errors after running the other actions found in package.json:

npm run postinstall
npm run prepublish
npm run start

[couch4]

If you find out the answer to this, I'd love to know!