# Message 112

## Message

"112. A file has not been selected for the math operator operator driving math function"

## Description

Some math operators require that a supporting file be imported. For example, the Apply S4P simulation operator requires that a four-port S-parameter file be applied to it. Click on the operator to open the setup dialog box. Click the Browse button to load the file. Click on the dialog box's help button to learn about any supporting file that is required by the operator.

This message is displayed in the message area and is reported as a programming error message.