Starting Tracker via Anaconda

Hi
I am having trouble starting Tracker in the conda environment.
I hope someone can help me
It gives me following error:
Traceback (most recent call last):
File “C:\Users\ced5891\Anaconda3\Scripts\tracker-script.py”, line 5, in
from tracker.app import main
File “C:\Users\ced5891\Anaconda3\lib\site-packages\tracker\app.py”, line 17, in
from tracker.widgets import GroupBox, ColorButton, ScreenshotDialog, connect_widget
File “C:\Users\ced5891\Anaconda3\lib\site-packages\tracker\widgets.py”, line 11, in
from tracker.tone_curve import ToneCurveEditor
File “C:\Users\ced5891\Anaconda3\lib\site-packages\tracker\tone_curve.py”, line 7, in
from matplotlib.backends.backend_qtagg import FigureCanvas
ModuleNotFoundError: No module named ‘matplotlib.backends.backend_qtagg’

So the GUI doesn’t even launch? What windows version? Also can you post the result of running

conda list

Should look something like:

# packages in environment at /nfs/home/3/jweber/anaconda3/envs/tracker:
#
# Name                    Version                   Build  Channel
_libgcc_mutex             0.1                        main  
_openmp_mutex             4.5                       1_gnu  
blas                      1.0                         mkl  
bottleneck                1.3.2            py37heb32a55_1  
brotli                    1.0.9                he6710b0_2  
bzip2                     1.0.8                h7b6447c_0  
ca-certificates           2021.10.26           h06a4308_2  
cairo                     1.16.0               hf32fb01_1  
certifi                   2021.10.8        py37h06a4308_2  
cycler                    0.11.0             pyhd3eb1b0_0  
dbus                      1.13.18              hb2f20db_0  
expat                     2.4.1                h2531618_2  
ffmpeg                    4.0                  hcdf2ecd_0  
fontconfig                2.13.1               h6c09931_0  
fonttools                 4.25.0             pyhd3eb1b0_0  
freeglut                  3.0.0                hf484d3e_5  
freetype                  2.11.0               h70c0345_0  
giflib                    5.2.1                h7b6447c_0  
glib                      2.69.1               h4ff587b_1  
graphite2                 1.3.14               h23475e2_0  
gst-plugins-base          1.14.0               h8213a91_2  
gstreamer                 1.14.0               h28cd5cc_2  
h5py                      2.8.0            py37h989c5e5_3  
harfbuzz                  1.8.8                hffaf4a1_0  
hdf5                      1.10.2               hba1933b_1  
icu                       58.2                 he6710b0_3  
intel-openmp              2021.4.0          h06a4308_3561  
jasper                    2.0.14               hd8c5072_2  
jpeg                      9d                   h7f8727e_0  
kiwisolver                1.3.1            py37h2531618_0  
lcms2                     2.12                 h3be6417_0  
ld_impl_linux-64          2.35.1               h7274673_9  
libffi                    3.3                  he6710b0_2  
libgcc-ng                 9.3.0               h5101ec6_17  
libgfortran-ng            7.5.0               ha8ba4b0_17  
libgfortran4              7.5.0               ha8ba4b0_17  
libglu                    9.0.0                hf484d3e_1  
libgomp                   9.3.0               h5101ec6_17  
libopencv                 3.4.2                hb342d67_1  
libopus                   1.3.1                h7b6447c_0  
libpng                    1.6.37               hbc83047_0  
libstdcxx-ng              9.3.0               hd4cf53a_17  
libtiff                   4.2.0                h85742a9_0  
libuuid                   1.0.3                h7f8727e_2  
libvpx                    1.7.0                h439df22_0  
libwebp                   1.2.0                h89dd481_0  
libwebp-base              1.2.0                h27cfd23_0  
libxcb                    1.14                 h7b6447c_0  
libxml2                   2.9.12               h03d6c58_0  
lz4-c                     1.9.3                h295c915_1  
matplotlib                3.5.0            py37h06a4308_0  
matplotlib-base           3.5.0            py37h3ed280b_0  
mkl                       2021.4.0           h06a4308_640  
mkl-service               2.4.0            py37h7f8727e_0  
mkl_fft                   1.3.1            py37hd3c417c_0  
mkl_random                1.2.2            py37h51133e4_0  
munkres                   1.1.4                      py_0  
ncurses                   6.3                  h7f8727e_2  
numexpr                   2.8.1            py37h6abb31d_0  
numpy                     1.21.2           py37h20f2e39_0  
numpy-base                1.21.2           py37h79a1101_0  
olefile                   0.46                     py37_0  
opencv                    3.4.2            py37h6fd60c2_1  
openssl                   1.1.1m               h7f8727e_0  
packaging                 21.3               pyhd3eb1b0_0  
pandas                    1.3.5            py37h8c16a72_0  
pcre                      8.45                 h295c915_0  
pillow                    8.4.0            py37h5aabda8_0  
pip                       21.2.2           py37h06a4308_0  
pixman                    0.40.0               h7f8727e_1  
psutil                    5.8.0            py37h27cfd23_1  
py-opencv                 3.4.2            py37hb342d67_1  
pyparsing                 3.0.4              pyhd3eb1b0_0  
pyqt                      5.9.2            py37h05f1152_2  
python                    3.7.11               h12debd9_0  
python-dateutil           2.8.2              pyhd3eb1b0_0  
pytz                      2021.3             pyhd3eb1b0_0  
qt                        5.9.7                h5867ecd_1  
qtpy                      1.11.2             pyhd3eb1b0_0  
readline                  8.1.2                h7f8727e_1  
scipy                     1.7.3            py37hc147768_0  
setuptools                58.0.4           py37h06a4308_0  
sip                       4.19.8           py37hf484d3e_0  
six                       1.16.0             pyhd3eb1b0_0  
sqlite                    3.37.0               hc218d9a_0  
tables                    3.7.0                    pypi_0    pypi
tk                        8.6.11               h1ccaba5_0  
tornado                   6.1              py37h27cfd23_0  
wheel                     0.37.1             pyhd3eb1b0_0  
xz                        5.2.5                h7b6447c_0  
zlib                      1.2.11               h7f8727e_4  
zstd                      1.4.9                haebb681_0