Unable to assign a family to a device. On the Device Properties dialog, the Family field is grayed out and not accessible.
Or, the Family field is not grayed out, but the expected family is not listed on the Device Family dialog that results from clicking the [...] button on Device Properties.
If the symbol corresponding to the Device Properties dialog is not specified in any family in any catalog specified in Setup > Catalog Paths, the Family field will be grayed out on Device Properties because there is no appropriate family to select.
If the expected family does not appear on the Device Family dialog, then the symbol corresponding to the Device Properties dialog is specified in some families but not the family the user expects.