如何解决SIMULINK下有关MUX这个问题
 

Cannot propagate frame data from output port 1 of ‘*****’to input port 1 of ‘*****’. One of the signals that is multiplexed into the signal at the output of the source contains frame-based data. This multiplexed signal has to be demultiplexed before it can be fed to the destination.
这是问题描述，请问如何解决，谢谢各位