How can I resolve the error "Net wire X has multiple names"?
If you look a bit closer, the two nets are in fact joined (you can see the junction)


The only ways to get rid of the warning are:


If you did not intend to tie those nets together, remove the offending junction and check the schematic.
If you did intend to tie the two nets, either delete one of the net names or use a net tie (I would simply delete one of the net names).


The warning is there because in the layout tool, only one of the net names can appear.

You could adjust your warnings, but that is not usually a good idea.