Your question is a bit unclear, so let me take a guess. If using Layout XL (or VLS XL in IC61), then you would need to do Connectivity->Update Components and Nets (and potentially a "check" operation on the schematic if you've not done so already). This doesn't happen automatically (because it would be really annoying to have it change half way through doing the layout, if you wer e only half way through making the schematic changes...).
I didn't quite undefrstand what the "error is reported (wrong connection)" meant - what is giving the error? If the Layout Editor has not noticed the changes, how is it giving an error? Confused...