Fix nightly issue: can not add user that never logged in Handle the NotFoundError in userManager.GetUserByName()
Fix nightly issue: can not add user that never logged in
Handle the NotFoundError in userManager.GetUserByName()

Signed-off-by: stonezdj <e448f09b914c496cf3b92ef4ede40f018f408657@gmail.com>

wy65701436/harbor,reasonerjt/harbor,wy65701436/harbor,reasonerjt/harbor,wy65701436/harbor,reasonerjt/harbor,wy65701436/harbor,wy65701436/harbor,reasonerjt/harbor,reasonerjt/harbor,reasonerjt/harbor,wy65701436/harbor