When I attempt to set up CCSM, I notice error message

Hello,
When I attempt to set up CCSM, I notice this error message:
Please help me to solve it.

Package dependencies cannot be resolved
This error could be caused by required additional
software packages which are missing or not installable.
Furthermore there could be a conflict between software
packages which are not allowed to be installed at the
same time.
Details
OK
Thanks.
