1. Reading package lists... Done
  2. Building dependency tree
  3. Reading state information... Done
  4. libmono-cecil-private-cil is already the newest version (4.6.0.165-0xamarin1).
  5. libmono-cecil-private-cil set to manually installed.
  6. Some packages could not be installed. This may mean that you have
  7. requested an impossible situation or if you are using the unstable
  8. distribution that some required packages have not yet been created
  9. or been moved out of Incoming.
  10. The following information may help to resolve the situation:
  12. The following packages have unmet dependencies.
  13. libmono-cecil-cil : Depends: libmono-cecil-private-cil (< 4.2.1.103) but 4.6.0.165-0xamarin1 is to be installed
  14. E: Unable to correct problems, you have held broken packages.