Can't npm start existing create-react-app



I’m using a chromebook and have cloned an existing Bitbucket project which I created using create-react-app. I’ve updated Node and NPM to the latest versions, but when I run ‘npm start’ - I get the following error logging:

> project@0.1.0 start /home/ubuntu/workspace
> react-scripts start

    throw err;

Error: Cannot find module './util/resolveCommand'
    at Function.Module._resolveFilename (module.js:469:15)
    at Function.Module._load (module.js:417:25)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/home/ubuntu/workspace/node_modules/cross-spawn/lib/parse.js:3:22)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)

Any idea what the problem here is?