The Zone input in the Building Tree does not have a valid Occupancy type selected. Navigate in the building tree to the zone, click on the pull-down for the Occupancy selection and select from the valid choices.
This type of error shows up when opening an older file from a prior code cycle in which the prior occupancy is no longer a valid occupancy in the new code cycle and requires you to reselect a valid occupancy under the new code.
← Frequently Asked Questions