HDL Workflow Advisor Error

I am using Matlab 2017a and Xilinx vivado 2015.2 When using the HDL Workflow advisor to generate HDL code I get the following error in joint figure :

 Does anyone know how to fix this error?
thank you

Answer 1

[Yongfeng]

Based on the error message, HDL Coder needs sample time to be more specific than "0" for delay balancing. Although Transfer Fcn block doesn't have a sample time setting, the "0" sample time may be propagated from signals around this block. You may try the following two general steps first:

1. >> hdlsetup('MASDiscritized');
2. Ensure that every signal has a specific discrete sample time.