Navigation: COGO > Warnings and Errors > You must have at least 3 points for this operation This operation requires at least three points for the computation. Correction Select three or more points in a view, then initiate this operation so TPC knows which points to use. If this is a traverse operation, like Predetermined Area, the traverse must have at least three points. Related Topics COGO Editions Personal, Premium, Professional Copyright © 2026 Traverse PC, Inc.