A Niagara R2 UNC station fails to start, producing the following error in the standard output window: FATAL: Cannot boot station from sns java.lang.ClassNotFoundException: tridiumx.webuser.WebUserAdminService

Issue

A Niagara R2 UNC station fails to start, producing the following error in the standard output window:

FATAL: Cannot boot station from sns
java.lang.ClassNotFoundException: tridiumx.webuser.WebUserAdminService

Full Error Message:

Product Line

TAC I/A Series

Environment

Niagara R2

Cause

Missing a supporting jar file

Resolution

Install the webuser jar file and reboot the UNC.