Too many output arguments

Hi! I need help to solve a problem of MATLAB

When I want to graph a step response, i. e., the function "step(G)", I get this error

Warning: Too many output arguments.

> In wavepack.waveform/draw (line 65)

In wrfc.plot/draw (line 17)

In wrfc.plot/init_listeners>LocalRefreshPlot (line 79)

In DynamicSystem/stepplot (line 131)

In DynamicSystem/step (line 92)

In d_Resp_Escalon (line 2)

How can I solve it?

[Walter Roberson]

Odd.

Which release are you using, and which operating system?

[Oscar Uicab]

I'm using MATLAB R2017b with Windows 10

Answer 1

[Yuan Li]

I can get the result using r2014a. I used the same input in your screen shot.