hello,i want to save fig ,so i add "plt.savefig("pic.svg",dpi=300),and then imugnss.ipnb report error message, as shown in below, i have install latex

[miaozujia]

Traceback (most recent call last): File "/home/m/.local/lib/python3.7/site-packages/matplotlib/texmanager.py", line 235, in _run_checked_subprocess stderr=subprocess.STDOUT) File "/usr/lib/python3.7/subprocess.py", line 411, in check_output **kwargs).stdout File "/usr/lib/python3.7/subprocess.py", line 512, in run output=stdout, stderr=stderr) subprocess.CalledProcessError: Command '['latex', '-interaction=nonstopmode', '--halt-on-error', '../8ddaeba802fcd44188b8e17db5f00669.tex']' returned non-zero exit status 1.

The above exception was the direct cause of the following exception:

Traceback (most recent call last): File "/home/m/Downloads/ukfm-master/imugnss.py", line 171, in MODEL.plot_results(ukf_states, ys) File "/home/m/Downloads/ukfm-master/ukfm/model/imugnss.py", line 435, in plot_results plt.savefig("imu_gps.svg",dpi=300) File "/home/m/.local/lib/python3.7/site-packages/matplotlib/pyplot.py", line 958, in savefig res = fig.savefig(*args, **kwargs) File "/home/m/.local/lib/python3.7/site-packages/matplotlib/figure.py", line 3019, in savefig self.canvas.print_figure(fname, **kwargs) File "/home/m/.local/lib/python3.7/site-packages/matplotlib/backend_bases.py", line 2325, in print_figure **kwargs) File "/home/m/.local/lib/python3.7/site-packages/matplotlib/backend_bases.py", line 1648, in wrapper return func(*args, **kwargs) File "/home/m/.local/lib/python3.7/site-packages/matplotlib/_api/deprecation.py", line 386, in wrapper return func(*inner_args, **inner_kwargs) File "/home/m/.local/lib/python3.7/site-packages/matplotlib/_api/deprecation.py", line 412, in wrapper return func(*inner_args, **inner_kwargs) File "/home/m/.local/lib/python3.7/site-packages/matplotlib/backends/backend_svg.py", line 1333, in print_svg self.figure.draw(renderer) File "/home/m/.local/lib/python3.7/site-packages/matplotlib/artist.py", line 73, in draw_wrapper result = draw(artist, renderer, *args, **kwargs) File "/home/m/.local/lib/python3.7/site-packages/matplotlib/artist.py", line 50, in draw_wrapper return draw(artist, renderer) File "/home/m/.local/lib/python3.7/site-packages/matplotlib/figure.py", line 2811, in draw renderer, self, artists, self.suppressComposite) File "/home/m/.local/lib/python3.7/site-packages/matplotlib/image.py", line 132, in _draw_list_compositing_images a.draw(renderer) File "/home/m/.local/lib/python3.7/site-packages/matplotlib/artist.py", line 50, in draw_wrapper return draw(artist, renderer) File "/home/m/.local/lib/python3.7/site-packages/matplotlib/axes/_base.py", line 3046, in draw self._update_title_position(renderer) File "/home/m/.local/lib/python3.7/site-packages/matplotlib/axes/_base.py", line 2996, in _update_title_position if title.get_window_extent(renderer).ymin < top: File "/home/m/.local/lib/python3.7/site-packages/matplotlib/text.py", line 910, in get_window_extent bbox, info, descent = self._get_layout(self._renderer) File "/home/m/.local/lib/python3.7/site-packages/matplotlib/text.py", line 311, in _get_layout ismath="TeX" if self.get_usetex() else False) File "/home/m/.local/lib/python3.7/site-packages/matplotlib/backends/backend_svg.py", line 1276, in get_text_width_height_descent return self._text2path.get_text_width_height_descent(s, prop, ismath) File "/home/m/.local/lib/python3.7/site-packages/matplotlib/textpath.py", line 51, in get_text_width_height_descent renderer=None) File "/home/m/.local/lib/python3.7/site-packages/matplotlib/texmanager.py", line 335, in get_text_width_height_descent dvifile = self.make_dvi(tex, fontsize) File "/home/m/.local/lib/python3.7/site-packages/matplotlib/texmanager.py", line 273, in make_dvi f"../{texfile.name}"], tex, cwd=tmpdir) File "/home/m/.local/lib/python3.7/site-packages/matplotlib/texmanager.py", line 248, in _run_checked_subprocess exc=exc.output.decode('utf-8'))) from exc RuntimeError: latex was not able to process the following string: b'lp'

Here is the full report generated by latex: This is pdfTeX, Version 3.14159265-2.6-1.40.18 (TeX Live 2017/Debian) (preloaded format=latex) restricted \write18 enabled. entering extended mode (../8ddaeba802fcd44188b8e17db5f00669.tex LaTeX2e <2017-04-15> Babel <3.18> and hyphenation patterns for 84 language(s) loaded. (/usr/share/texlive/texmf-dist/tex/latex/base/article.cls Document Class: article 2014/09/29 v1.4h Standard LaTeX document class (/usr/share/texlive/texmf-dist/tex/latex/base/size10.clo)) (/usr/share/texlive/texmf-dist/tex/latex/type1cm/type1cm.sty) (/usr/share/texmf/tex/latex/cm-super/type1ec.sty (/usr/share/texlive/texmf-dist/tex/latex/base/t1cmr.fd)) (/usr/share/texlive/texmf-dist/tex/latex/base/inputenc.sty (/usr/share/texlive/texmf-dist/tex/latex/base/utf8.def (/usr/share/texlive/texmf-dist/tex/latex/base/t1enc.dfu) (/usr/share/texlive/texmf-dist/tex/latex/base/ot1enc.dfu) (/usr/share/texlive/texmf-dist/tex/latex/base/omsenc.dfu))) ! Undefined control sequence. \ ->\let \reserved@e \relax \let \reserved@f \relax @ifstar {\let \reserv... l.9 ...package{amsmath}', '\usepackage{amssymb}']

No pages of output. Transcript written on 8ddaeba802fcd44188b8e17db5f00669.log.