Compilation of model 'dianjishixian3' failed while trying to resolve underspecified signal dimensions.原因: Error in port widths or dimensions. Invalid dimension has been specified for input ' SFunction '.建议的操作Enable 'warning' or 'error' diagnostics for the list of underspecified signal dimensions.
大概可能是什么问题

这两个器件是什么啊，有人知道吗