Ionic 2 alpha.31: npm failed to install dependency reactivex/rxjs

from the installation of ionic 2 alpha.31 (

npm http 404
npm ERR! 404 Not Found
npm ERR! 404 
npm ERR! 404 'reactivex/rxjs' is not in the npm registry.
npm ERR! 404 You should bug the author to publish it
npm ERR! 404 It was specified as a dependency of 'ionic-framework'

opened the url in the browser, got 404 also. :cry:

edit: tried with visual studio 2015 community by editing the package.json and also via npm cli (win7)

Wow Windows and Ionic 2, you’re looking for trouble.
What version of NodeJS are you using? Hopefully not 5.x ?

well no risk no fun :smile:

Thank you for pointing me to the versions. I´m using Visual Studio 2015 (sorry, imo best IDE for years) to play with ionic2. It seems that Visual Studio comes with its own set of “external web tools” and uses nodejs 0.10 and and also npm 1.4

There are workarounds which i found here:

So adding the default node installation path to the “external web tools” seemed to help.


I was trying to go down this path with visual studio 2015 and could not get typescript and ionic2 to play nice together and integrate the build process… Have you had much luck?

sorry for the late reply. no, i failed also. therefore, i´ve been using ionic 1 and an old VS project template. Would like to see an ionic 2 project template for VS 2015 (at least after alpha state), which has nice integration for grunt, gulp & co.