Hi! This error means that somewhere else in your schematic you have named your GND also with net label of PB-. Although, I can't confirm that 100% because your project is not public. Regards, Markus Virtanen HW / Electronics Designer

Check the pads in the Footprints in the Footprint Editor for each component that you have used. Sometimes they have been incorrectly created with netnames applied to one or more pads. If that is what has happened then you need to replace (or edit) the Footprint with one that has no netnames applied to the pads: they should be blank so that they can inherit the names of the nets that you connect to them.

The multiple net label warning text seems to have disappeared. See: [https://easyeda.com/forum/topic/Multiple-net-labels-on-a-net-no-longer-show-a-warning-message-in-lower-left-of-Schematic-Design-Manager-f9a7569ac45140f09ec2dc3508b48af4](https://easyeda.com/forum/topic/Multiple-net-labels-on-a-net-no-longer-show-a-warning-message-in-lower-left-of-Schematic-Design-Manager-f9a7569ac45140f09ec2dc3508b48af4)