Function 'scanI2CBus' is not supported for code generation.

I have a Simulink model, and from the Simulink model I am trying to call functions such as "scanI2CBus" in order to get data from the Arduino I have connected. However, when I do this, it throws the error "Function 'scanI2CBus' is not supported for code generation." What does this mean? How could I call a MATLAB function like 'scanI2CBus' from my Simulink model?

[Walter Roberson]

MATLAB does not know how to create C / C++ code to scan I2C busses.

See https://playground.arduino.cc/Main/I2cScanner/