title: problem when install a program in a virtual linux (Centos) : could not depsolve transaction?
body: <p>I am newbie with virtual linux and trying to install a program in this virtual machine and meet this error : Could not depsolve transaction, 1 problem detected.</p>
  <p>Another program installed ok by nom.</p>
  <p>They gave me many rpm, and in some of that, there is one of them named Cloud Mark.
  In the installation guide, they said that I must install the program named Cloud Mark first, but when I try to install it, it said to me this error.</p>
  <p>Could you please give me some ideas for me for this problem ?</p>
  <p>Thank you very much for your time.</p>