two node link element modeling error

[zly123]

I use two node link element to establish a MDOF model,but it can't analysis.

[zly123]

I only build point and use node to node interaction,now it can analysis but it's also wrong.

[kesavapraba]

Hi, the error in STKO suggests that you have assigned the element on edges but not on node-node interaction. I can see in the attached figure there are some edges! Please check if you are assigning the element to the interactions.