Please do not try to use the WebUpd8 PPA as it is no longer being updated for recent releases of Ubuntu.
The link that I gave you shows that it hasn't been updated for some time. No point in waiting as I think that the WebUpd8 project is no more. You should *remove* that PPA from your sources and then the errors will go away.
Please do not try to use the WebUpd8 PPA as it is no longer being updated for recent releases of Ubuntu.
The link that I gave you shows that it hasn't been updated for some time. No point in waiting as I think that the WebUpd8 project is no more. You should *remove* that PPA from your sources and then the errors will go away.