+ ----------------------------------------------------------------------------- + ------ + --------------- + ------------- +
| Description                                                                   | Status | Completion Time | Creation Time |
+ ----------------------------------------------------------------------------- + ------ + --------------- + ------------- +
|   Failed while calculating product dependencies.                              |        |                 |               |
|   Reading Package Lists...                                                    |        |                 |               |
|   Building Dependency Tree...                                                 |        |                 |               |
|   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.                                              |        |                 |               |
|   Since you only requested a single operation it is extremely likely that     |        |                 |               |
|   the package is simply not installable and a bug report against              |        |                 |               |
|   that package should be filed.                                               |        |                 |               |
|   The following information may help to resolve the situation:                |        |                 |               |
|   The following packages have unmet dependencies:                             |        |                 |               |
|     evolution: Depends: gtkhtml3.8 (>= 3.8.0) but it is not installable       |        |                 |               |
|                Depends: libgtkhtml3.8-15 (>= 3.8.1) but it is not installable |        |                 |               |
|   E: Broken packages                                                          |        |                 |               |
+ ----------------------------------------------------------------------------- + ------ + --------------- + ------------- +