gistfile1.txt

kamal@ubuntu:/etc/apt$ sudo apt-get install rubygems ohai chef chef-server
Reading package lists... Done
Building dependency tree       
Reading state information... Done
rubygems is already the newest version.
ohai is already the newest version.
chef is already the newest version.
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
  chef-server: Depends: chef-server-slice but it is not going to be installed
               Depends: stompserver but it is not going to be installed
               Depends: chef-indexer but it is not going to be installed
E: Broken packages

kamal@ubuntu:/etc/apt$ sudo apt-get install stompserver
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
  stompserver: Depends: libeventmachine-ruby1.8 but it is not installable
E: Broken packages

kamal@ubuntu:/etc/apt$ sudo apt-get install libeventmachine-ruby1.8
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package libeventmachine-ruby1.8 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 libeventmachine-ruby1.8 has no installation candidate