visual studios c# project error with refrence need help resolving this

need you to use team viewer to log into my computer and fix this small issue need to be done right away : Severity Code Description Project File Line Suppression State Error CS0246 The type or namespace name 'AxZRush_ShipRush' could not be found (are you missing a using directive or an assembly reference?) [login to view URL] F:\OLD Data Backup\OMS\[login to view URL]\[login to view URL] 357 Active