GET /lib/adal-angular/lib/adal.js 404 (Not Found)

I'm unable to run the sample. 

GET /lib/adal-angular/lib/adal.js 404 (Not Found)

I changed the map path in systemjs.config.js to get around the issue:

Was:
'adal': 'lib/adal-angular/lib'  

Edited:
'adal': 'lib/angular2-adal/node_modules/adal-angular/lib'   
