kkhan
Ansys Employee
Hi,nThis error is coming because LSSOLVE/LSWRITE cannot be used with the birth-death option. Please refer to the documentation: https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v193/ans_cmd/Hlp_C_LSWRITE.html?q=lswritenYou might need to use Solve command instead of LSSOLVE to run the model.nn