pr2 cannot install pr2_robot

While debugging audio drivers on the pr2 robot the package `pr2_robot` was unintentionally uninstalled. I cannot seem to install `ros-indigo-pr2-robot` again. `pr2_robot` is also a dependency for `pr2-core` which needs to be reinstalled. I followed the instructions here. http://www.clearpathrobotics.com/assets/guides/pr2/UpdatingSourcesList.html and here http://www.clearpathrobotics.com/assets/guides/pr2/InstallingPR2Trusty.html The problem being the prior Clearpath server is no longer available as far as I can tell http://clearpathrobotics.com/pr2-packages/ubuntu ec2-52-37-150-147.us-west-2.compute.amazonaws.com/ I emailed Clearpath for a replacement location and they replied with this url http://52.35.195.135/ http://ec2-52-35-195-135.us-west-2.compute.amazonaws.com/ I tired to get the key via this command sudo wget http://ec2-52-35-195-135.us-west-2.compute.amazonaws.com/ubuntu/pr2packages.gpg | sudo apt-key add and then updated my source list to look like this deb http://ec2-52-35-195-135.us-west-2.compute.amazonaws.com/ubuntu trusty pr2 deb http://ec2-52-35-195-135.us-west-2.compute.amazonaws.com/ubuntu trusty main This includes many of the pr2 debs but does not include the install for ros-indigo-pr2-robot. I still get this result sudo apt-get update sudo apt-get install ros-indigo-pr2-robot Reading package lists... Done Building dependency tree Reading state information... Done Package ros-indigo-pr2-robot is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package 'ros-indigo-pr2-robot' has no installation candidate Is there anther location I am missing that needs to be added to my source lists or a way to manually install `ros-indigo-pr2-robot` so that `pr2-core` can be installed? Please let me know any additional information that may help. Thanks for any assistance.