A cell with incomplete routing is indicated by a red background. To generate
proper pin routing, click the drop-down arrow and select the suitable value.
Figure 1. Incomplete routing
The tooltip of the cell shows more details about the conflict or the error, typically
it lists the lines where conflict occurs.
You can also select Pins > Automatic Routing from the Main menu to resolve any
routing issues.
Note: Not all routing issues can be resolved automatically. In some cases,
manual intervention is required.
