TwoNode links local coordinate system warning

[DaHuang]

Dear SKTO team,

Is there any problem when you get the warning for using the TwoNode links element? the program keeps having "no local y vector specified
" warning even I assigned local coordinate to those links.

Thanks,

Da

[HC2020]

Dear Da Huang,

A similar question was answered here: viewtopic.php?t=2016
Read through this topic and see if it helps you understand the issue.

Best,

Hannah

[DaHuang]

Thank you! that is very clear.