When I run the following command:
sudo apt-get update
sudo apt-get dist-upgrade
I just get this error:
Calculating upgrade... Failed
The following packages have unmet dependencies:
libcogl15 : Breaks: libclutter-1.0-0 (< 1.15) but 1.14.4-3 is to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
I'm really new to Linux/Ubuntu and I just can't figure out how to update libcogl15.
If I run the command
sudo apt-get dist-upgrade
Then I get
Could not calculate the upgrade
An unresolvable problem occurred while calculating the upgrade.
This can be caused by:
* Upgrading to a pre-release version of Ubuntu
* Running the current pre-release version of Ubuntu
* Unofficial software packages not provided by Ubuntu
