The selection of nodes and members is described in Chapter 2.2.
In the Parameters section, you can check the boundary conditions of the connected structural components. If there is an Invalid cross-section, you should adjust the cross-section series to match the joint type set in Window 1.1.
TIP
If several members such as beams, purlins, and diagonals connect to the node, the redundant members must be set to be Inactive.
When the comment "Wrong geometry" is displayed, you have to check whether the joint geometry meets the requirements of the typified connections.