Method trigger_async does not work?

[interpegasus]

Hi,

I would like to know why 'trigger_async' does not work sometimes?
It seems to work fine at Heroku, but not from my development machine (MAC OS 10.9)

This works:

    Pusher[('timeline ' + self.event.name.to_s).parameterize].trigger('timeline', {
        timeline_event: pusher_object, action: action
    })

This doesn't work:

    Pusher[('timeline ' + self.event.name.to_s).parameterize].trigger_async('timeline', {
        timeline_event: pusher_object, action: action
    })

Error:

cannot load such file -- em-http

$ rvm info

ruby-1.9.3-p448:

  system:
    uname:       "Darwin -MacBook-Air.local 13.0.0 Darwin Kernel Version 13.0.0: Thu Sep 19 22:22:27 PDT 2013; root:xnu-2422.1.72~6/RELEASE_X86_64 x86_64"
    system:      "osx/10.9/x86_64"
    bash:        "/bin/bash => GNU bash, version 3.2.51(1)-release (x86_64-apple-darwin13)"
    zsh:         "/bin/zsh => zsh 5.0.2 (x86_64-apple-darwin13.0)"

  rvm:
    version:      "rvm 1.22.1 () by Wayne E. Seguin <wayneeseguin@gmail.com>, Michal Papis <mpapis@gmail.com> [https://rvm.io/]"
    updated:      "5 months 27 days 5 hours 25 minutes 47 seconds ago"
    path:         "/Users/user/.rvm"

  ruby:
    interpreter:  "ruby"
    version:      "1.9.3p448"
    date:         "2013-06-27"
    platform:     "x86_64-darwin11.4.2"
    patchlevel:   "2013-06-27 revision 41675"
    full_version: "ruby 1.9.3p448 (2013-06-27 revision 41675) [x86_64-darwin11.4.2]"

Thanks in advance

[zimbatm]

Sorry this issue slipped trough. The trigger_async method actually depends on em-http-request being installed. I think it might have been installed on one system and not the other.