I try to update from trisquel 7 to trisquel 8.
Here is error: 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 Trisquel
* Running the current pre-release version of Trisquel
* Unofficial software packages not provided by Trisquel
If none of this applies, then please report this bug using the command
https://trisquel.info/en/project/issues in a browser..
Could you help me to resolve it?
Thank you very much