Install issues via composer I ran composer global require drush/drush:dev-master. I'm not sure how to  resolvirthis issue as it seems that the package isn't found anymore. Do I have to update somehow?

Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - Installation request for drush/drush dev-master -&gt; satisfiable by drush/drush[dev-master].
    - drush/drush dev-master requires codegyre/robo ~1.0.0-beta1 -&gt; satisfiable by codegyre/robo[1.0.0-beta1] but these conflict with your requirements or minimum-stability.

Installation failed, deleting ./composer.json.
I did a work around without using composer to do the install by doing the following:


make a drush directory in your home folder (~)
git clone https://github.com/drush-ops/drush.git
cd into that directory
./drush --version (it should complain about composer install)
run composer install
./drush --version WORKING!


I'm using ubuntu so initially I did apt-get install drush, but that version is 5. Then I did the following to download the latest into ~/drush 

From there I went to my global run folder: /usr/bin and renamed the old drush to drush_old and then did a ln -s ~/drush/drush drush now its on the latest drush!