how to use export_fig in matlab app designer?

I want to copy Ui Axes to a figure. How the export_fig should be implemented? Unfortunately copyUiAxes is not working in my case.

I tried export_fig(gca,filename), but gives some error.What is the way to tackle this issue?

[Adam Danz]

Duplicate:

https://www.mathworks.com/matlabcentral/answers/510081-how-to-export-xaxistick-labels-which-are-cell-arrays-to-figure-or-powerpoint-in-app-designer