Hello Mahamadou, In your TCL script check for the number of nodes you have set initially and then check where you defined each node's X, Y, Z coordinates. you might have listed the coordinates of the nodes from Node 0 till node 20 and initialized the nn (number of nodes) to 20 which is WRONG because 20 nodes means you should specify coodrs of nodes from 0 to 19 ONLY, so delete node 20's coordinates from your topology file. If the above is your case, it should work.
Good Luck. Mathiew Quoting Mahamadou HAMIDINE <hamidine2...@gmail.com>: > >
