ember js, trying to use ember-jquery-mobile add-on

I'm trying to import [ember-jquery-mobile][1] to my ember project, so I followed the instructions and simply ran: ember install ember-jquery-mobile.

This got my project no to run any more and I just get the error:

    ENOENT: no such file or directory, stat '/Users/giulio/Documents/rails/project/tmp/source_map_concat-input_base_path-http://ift.tt/2145lDc'
    Error: ENOENT: no such file or directory, stat '/Users/giulio/Documents/rails/project/tmp/source_map_concat-input_base_path-http://ift.tt/2145lDc'
        at Error (native)
        at Object.fs.statSync (fs.js:892:18)
        at ConcatWithMaps.keyForFile (/Users/giulio/Documents/rails/project/node_modules/broccoli-caching-writer/index.js:90:20)
        at Array.map (native)
        at ConcatWithMaps.CachingWriter._conditionalBuild (/Users/giulio/Documents/rails/project/node_modules/broccoli-caching-writer/index.js:112:65)
        at /Users/giulio/Documents/rails/project/node_modules/broccoli-caching-writer/node_modules/broccoli-plugin/read_compat.js:61:34
        at lib$rsvp$$internal$$tryCatch (/Users/giulio/Documents/rails/project/node_modules/rsvp/dist/rsvp.js:493:16)
        at lib$rsvp$$internal$$invokeCallback (/Users/giulio/Documents/rails/project/node_modules/rsvp/dist/rsvp.js:505:17)
        at lib$rsvp$$internal$$publish (/Users/giulio/Documents/rails/project/node_modules/rsvp/dist/rsvp.js:476:11)
        at lib$rsvp$asap$$flush (/Users/giulio/Documents/rails/project/node_modules/rsvp/dist/rsvp.js:1198:9)  

any clues?