Updating to 16.04 doesn't seem to have gone as planned.

[allusernamestaken]

Getting this error and it appears that I still have the 15.10 repos.

http://storage7.static.itmages.com/i/16/0904/h_1472965910_8042795_dc27de0dc8.png

[allusernamestaken]

bump.

[PaulW2U]

Please run the following commands in a terminal:

sudo apt-get update
sudo apt-get upgrade
and post the output in CODE tags. Any errors seen should highlight where the problem lies.