same                                         

我也是         

Hold your horses

Execute the command and show your terminal display.

This can happen when the mirrors synchronize with the new packages. Please wait a little

there are inaccessible places in the source.  I think This is a bug

sudo dedit /etc/apt/sources.list
delete the

then go upgrade

For me it says "failed to update dependency error".

sudo apt install -f && sudo apt-get update && sudo apt-get upgrade -y