Impossible to calculate structure. Few properties for bars are missing.
When you try to calculate a model, you see the error: Impossible to calculate structure: Few properties for bars are missing. [NL]: Niet mogelijk om structuur te berekenen. Enkele staafgegevens ontbreken. [FR]: Impossible de calculer la structure: Quelques propertiétés de barres sont manquantes. [ES]: Imposible calcular la estructura: Faltan algunas…