title: Required package in composer.json not found
body: <p>I have created using the workbench of Laravel a package and uploded it to Packagist under pica/pica-base. The package contains the following require statement:</p>
  
  <p>"require": {
          "php": ">=5.4.0",
          "illuminate/support": "4.2.*",
          "gregwar/captcha": "dev-master"
      },</p>
  
  <p>When I try to install my pica/pica-base package it fails stating the following error message:</p>
  
  <p>Your requirements could not be resolved to an installable set of packages.</p>
  
  <p>Problem 1
      - pica/pica-base dev-master requires gregwar/captcha dev-master -> no matching package found.
      - pica/pica-base dev-master requires gregwar/captcha dev-master -> no matching package found.
      - Installation request for pica/pica-base dev-master -> satisfiable by pica/pica-base[dev-master].</p>
  
  <p>On advice of the FAQ I also tried the procedure with 'dev'in staed of 'dev-master'with the gregwar/captcha package but with the same result.</p>
  
  <p>I don't understand this because with the exact same requirement I can install the gregwar-package in any other project. And the link to the package shows up in the page of my package on Packigist (<a href="https://packagist.org/packages/pica/pica-base" rel="nofollow">https://packagist.org/packages/pica/pica-base</a>). </p>
  
  <p>So why does this fail?</p>
  
  <p>Thanks for efforts!</p>