matlab2tikz generates empty tikz-file when creating polarplot

[vanKey2022]

Hello all,

since several month I'm working with matlab2tikz and made good experiences. Right now, im trying to do a polarplot and convert it into a tikz-File to include it in Latex. The problem is, that matlab2tikz generates an empty tikz-File when creating a polarplot (see minimum example code). Does anyone have an idea how to solve the problem?

Kind regards
vanKey2022

Minimum example code, that does not work:
`
clear all

close all

theta = 0:0.01:2*pi;

rho = sin(2*theta).cos(2theta);

polarplot(theta,rho)

matlab2tikz('C:\Users\Name\Desktop\Polarplot.tikz', 'height', '5cm', 'width', '5cm');
`

The file Polarplot.tikz without content looks like that:

% This file was created by matlab2tikz.
%
%The latest updates can be retrieved from
% http://www.mathworks.com/matlabcentral/fileexchange/22022-matlab2tikz-matlab2tikz
%where you can also make suggestions and rate matlab2tikz.
%
\begin{tikzpicture}
\end{tikzpicture}%

The output from the matlab-console loosk like that:

*** (To disable info messages, pass ['showInfo', false] to matlab2tikz.)
*** (For all other options, type 'help matlab2tikz'.)

---

---

*** This is matlab2tikz v1.1.0.

---

*** The latest developments can be retrieved from our development branch.
*** You can find more documentation on our GitHub page and wiki.
*** If you encounter bugs or want a new feature, go to our issue tracker.
*** Please visit FileExchange to rate matlab2tikz or download the stable release.

---

*** You will need pgfplots version 1.3 or newer to compile the TikZ output.