Getting started misses a npm install step?

[flolege]

While following the Getting Started instructions in the README, the step "react-native dom" failed with the error message

module.js:550
throw err;
Error: Cannot find module 'asap/raw'
at Function.Module._resolveFilename (module.js:548:15)
at Function.Module._load (module.js:475:25)
at Module.require (module.js:597:17)
at require (internal/module.js:11:18)
at Object. (C:\Temp\reactnativedom\firsttry\node_modules\promise\lib\core.js:3:12)
at Module._compile (module.js:653:30)
at Module._compile (C:\Temp\reactnativedom\firsttry\node_modules\pirates\lib\index.js:83:24)
at Module._extensions..js (module.js:664:10)
at Object.newLoader [as .js] (C:\Temp\reactnativedom\firsttry\node_modules\pirates\lib\index.js:88:7)
at Module.load (module.js:566:32)

I had to run npm install in my root folder to get it executing correctly.

Is this a missing step in the Getting Started instructions? Note that I am not very experienced with react-native installing procedures, so maybe I miss some basic background.