Hello,
I am using hyperworks 2019
i ran some topology optimization till yesterday,
but suddenly today i started getting this error
*** ERROR # 5617 ***
The SUBCASE ID in ATT1 field of DRESP1 2 does not refer to a modal FRF subcase.
*** Run terminated because of error(s) in the input data.
someone had reported it for 2017 version but im using 2019.
can anyone help me what could be wrong?
I am not able to perform optimization with yesterday's input where i got results.
Thanks & Regards,
Pranav.
