Can someone explain, where the error is?
Clicking on R12 : 1
@mightycoco,
It's not a problem.
The red-backed white cross is the Design Manager is telling you that you have only one connection to that net.
A net must have at least two connections to it even if it only goes to a test point or a "Not Connected" green cross symbol.
Our website uses essential cookies to help us ensure that it is working as expected, and uses optional analytics cookies to offer you a better browsing experience. To find out more, read our Cookie Notice
Brand new interactions and interfaces. 
Easy to use and quick to get started. 