title: Devise/OmniAuth/Twitter - OAuth::Unauthorized (401)
body: <p>I'm trying to set up a Twitter login using Devise/OmniAuth, following the latest RailsCast for this.  I've registered the Twitter developer app, using the callback url of: <code>myiphere:port/users/auth/twitter</code>.</p>
  
  <p>I've followed everything to the T on the RailsCast, but each time I click the <code>Sign In With Twitter</code> link, I immediately get <code>OAuth::Unauthorized 401 Unauthorized on the myiphere:port/users/auth/twitter page</code>.</p>
  
  <p>I think I've defined the key correctly using <code>export TWITTER_CONSUMER_KEY=MYKEYINSERTEDHERE export TWITTWR_CONSUMER_SECRET=MYSECRETINSERTEDHERE rails server</code>.  I've tried most every solution I can find on the internet, all to no avail.  Almost all of the answers are for returning back to their site once logged in, I can't get to any kind of Twitter screen, just the 401 error on the <code>/users/auth/twitter</code> page.</p>