id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
5991	NF cannot evaluate structural parameter	Francesco Casella	Per Östlund	"There are over 50 models in the Buildings library that fail for the same reason, see, e.g., [https://libraries.openmodelica.org/branches/newInst/Buildings_latest/files/Buildings_latest_Buildings.ThermalZones.Detailed.BaseClasses.Examples.InfraredRadiationExchange.err Buildings.ThermalZones.Detailed.BaseClasses.Examples.InfraredRadiationExchange]. The NF reports 
{{{
[Buildings latest/HeatTransfer/Data/OpaqueConstructions.mo:9:4-11:111:writable]
Error: Could not evaluate structural parameter (or constant): 
irRadExc.datConExt.layers.nLay which gives dimensions of array: material.
Array dimensions must be known at compile time.
}}}
Fixing this issue would improve the coverage of Buildings substantially."	defect	new	blocker	1.17.0	New Instantiation