Map can't be loaded and then it can't be viewed in the logs

[NemanjaDragisic]

There is a logs that appears when I run the simulation and want to have map with me.

/venv-ardupilot/lib/python3.12/site-packages/MAVProxy/modules/mavproxy_map/mp_tile.py:601: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.
import pkg_resources
Process Process-3:
Traceback (most recent call last):
File "/usr/lib/python3.12/multiprocessing/process.py", line 314, in _bootstrap
self.run()
File "/usr/lib/python3.12/multiprocessing/process.py", line 108, in run
self._target(*self._args, **self._kwargs)
File "/venv-ardupilot/lib/python3.12/site-packages/MAVProxy/modules/mavproxy_map/mp_slipmap.py", line 87, in child_task
self.mt = mp_tile.MPTile(download=self.download,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/venv-ardupilot/lib/python3.12/site-packages/MAVProxy/modules/mavproxy_map/mp_tile.py", line 210, in init
self._loading = mp_icon('loading.jpg')
^^^^^^^^^^^^^^^^^^^^^^
File "/venv-ardupilot/lib/python3.12/site-packages/MAVProxy/modules/mavproxy_map/mp_tile.py", line 615, in mp_icon
img = cv2.imdecode(raw, cv2.IMREAD_COLOR)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
cv2.error: OpenCV(4.11.0) 👎 error: (-5:Bad argument) in function 'imdecode'

[stephendade]

Can you update to latest github source and try again?

[NemanjaDragisic]

I have just pulled the latest version of github source but again the problem is

Traceback (most recent call last):
File "/usr/lib/python3.12/multiprocessing/process.py", line 314, in _bootstrap
self.run()
File "/usr/lib/python3.12/multiprocessing/process.py", line 108, in run
self._target(*self._args, **self._kwargs)
File "/venv-ardupilot/lib/python3.12/site-packages/MAVProxy/modules/mavproxy_map/mp_slipmap.py", line 87, in child_task
self.mt = mp_tile.MPTile(download=self.download,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/venv-ardupilot/lib/python3.12/site-packages/MAVProxy/modules/mavproxy_map/mp_tile.py", line 210, in init
self._loading = mp_icon('loading.jpg')
^^^^^^^^^^^^^^^^^^^^^^
File "/venv-ardupilot/lib/python3.12/site-packages/MAVProxy/modules/mavproxy_map/mp_tile.py", line 615, in mp_icon
img = cv2.imdecode(raw, cv2.IMREAD_COLOR)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
cv2.error: OpenCV(4.11.0) 👎 error: (-5:Bad argument) in function 'imdecode'

Overload resolution failed:

• buf is not a numpy array, neither a scalar
• Expected Ptrcv::UMat for argument 'buf'

[stephendade]

File "/venv-ardupilot/lib/python3.12/site-packages/MAVProxy/modules/mavproxy_map/mp_tile.py", line 210, in init
self._loading = mp_icon('loading.jpg')

This is actually line 213 in current master: https://github.com/ArduPilot/MAVProxy/blob/master/MAVProxy/modules/mavproxy_map/mp_tile.py#L213, so your source code doesn't match what is in the repository.

Could you double-check you're running latest master?

[NemanjaDragisic]

I manually changed this file because even after running upgrade of git repository and MAVProxy they did not upgrade by themselves. If you can give me the commands, I would be really pleased.

Anyway, after manual upgrade this is a traceback.
Traceback (most recent call last):
File "/usr/lib/python3.12/multiprocessing/process.py", line 314, in _bootstrap
self.run()
File "/usr/lib/python3.12/multiprocessing/process.py", line 108, in run
self._target(*self._args, **self._kwargs)
File "/venv-ardupilot/lib/python3.12/site-packages/MAVProxy/modules/mavproxy_map/mp_slipmap.py", line 87, in child_task
self.mt = mp_tile.MPTile(download=self.download,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/venv-ardupilot/lib/python3.12/site-packages/MAVProxy/modules/mavproxy_map/mp_tile.py", line 213, in init
self._loading = mp_icon('loading.jpg')
^^^^^^^^^^^^^^^^^^^^^^
File "/venv-ardupilot/lib/python3.12/site-packages/MAVProxy/modules/mavproxy_map/mp_tile.py", line 635, in mp_icon
img = cv2.imdecode(raw, cv2.IMREAD_COLOR)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
cv2.error: OpenCV(4.11.0) 👎 error: (-5:Bad argument) in function 'imdecode'

Overload resolution failed:

• buf is not a numpy array, neither a scalar
• Expected Ptrcv::UMat for argument 'buf'

[NemanjaDragisic]

I ran command showed on the website of ArduPilot
python3 -m pip install mavproxy git+https://github.com/ArduPilot/mavproxy.git@master

After this update, I got this output
Collecting git+https://github.com/ArduPilot/mavproxy.git@master
Cloning https://github.com/ArduPilot/mavproxy.git (to revision master) to /tmp/pip-req-build-jw6ar5an
Running command git clone --filter=blob:none --quiet https://github.com/ArduPilot/mavproxy.git /tmp/pip-req-build-jw6ar5an
Resolved https://github.com/ArduPilot/mavproxy.git to commit 8947768
Running command git submodule update --init --recursive -q
Preparing metadata (setup.py) ... done
Requirement already satisfied: mavproxy in /venv-ardupilot/lib/python3.12/site-packages (1.8.71)
Requirement already satisfied: pymavlink>=2.4.14 in /home/dragi/venv-ardupilot/lib/python3.12/site-packages (from MAVProxy==1.8.71) (2.4.47)
Requirement already satisfied: pyserial>=3.0 in /usr/lib/python3/dist-packages (from MAVProxy==1.8.71) (3.5)
Requirement already satisfied: numpy in /venv-ardupilot/lib/python3.12/site-packages (from MAVProxy==1.8.71) (2.3.0)
Requirement already satisfied: pynmeagps in /venv-ardupilot/lib/python3.12/site-packages (from MAVProxy==1.8.71) (1.0.50)
Requirement already satisfied: future in /venv-ardupilot/lib/python3.12/site-packages (from pymavlink>=2.4.14->MAVProxy==1.8.71) (1.0.0)
Requirement already satisfied: lxml in /venv-ardupilot/lib/python3.12/site-packages (from pymavlink>=2.4.14->MAVProxy==1.8.71) (5.4.0)

This hash 8947768 corresponds to the last commit in current master. And even after that the same error arises.

/venv-ardupilot/lib/python3.12/site-packages/matplotlib/projections/init.py:63: UserWarning: Unable to import Axes3D. This may be due to multiple versions of Matplotlib being installed (e.g. as a system package and as a pip package). As a result, the 3D projection is not available.
warnings.warn("Unable to import Axes3D. This may be due to multiple versions of "
/venv-ardupilot/lib/python3.12/site-packages/matplotlib/projections/init.py:63: UserWarning: Unable to import Axes3D. This may be due to multiple versions of Matplotlib being installed (e.g. as a system package and as a pip package). As a result, the 3D projection is not available.
warnings.warn("Unable to import Axes3D. This may be due to multiple versions of "

Maybe important thing for this part
I tried to see why Axes3D can't be imported and I found that there is a problem with file
/usr/lib/python3/dist-packages/mpl_toolkits/mplot3d/init.py in line 35 where we have

from matplotlib.tri.triangulation import Triangulation

According to the documentation in matplotlib.tri we have class Triangulation and due to that module matplotlib.tri.triangulation can't be found since it does not exist.

In the same file on the line 723 there was given _set_ticklabels instead of set_ticklabels. So, these are 2 things that I saw.

After these changes, I tried to run it again and I got
/venv-ardupilot/lib/python3.12/site-packages/MAVProxy/modules/mavproxy_map/mp_tile.py:601: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.
import pkg_resources
Process Process-2:
Traceback (most recent call last):
File "/usr/lib/python3.12/multiprocessing/process.py", line 314, in _bootstrap
self.run()
File "/usr/lib/python3.12/multiprocessing/process.py", line 108, in run
self._target(*self._args, **self._kwargs)
File "/home/dragi/venv-ardupilot/lib/python3.12/site-packages/MAVProxy/modules/mavproxy_map/mp_slipmap.py", line 87, in child_task
self.mt = mp_tile.MPTile(download=self.download,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/dragi/venv-ardupilot/lib/python3.12/site-packages/MAVProxy/modules/mavproxy_map/mp_tile.py", line 210, in init
self._loading = mp_icon('loading.jpg')
^^^^^^^^^^^^^^^^^^^^^^
File "/home/dragi/venv-ardupilot/lib/python3.12/site-packages/MAVProxy/modules/mavproxy_map/mp_tile.py", line 615, in mp_icon
img = cv2.imdecode(raw, cv2.IMREAD_COLOR)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
cv2.error: OpenCV(4.11.0) 👎 error: (-5:Bad argument) in function 'imdecode'

Overload resolution failed:

• buf is not a numpy array, neither a scalar
• Expected Ptrcv::UMat for argument 'buf'

Since as you can see this pkg_resource is depricated. Maybe it is the problem. But I am not sure

[NemanjaDragisic]

I have solved the problem at least for my device, since I am running it on WSL Ubuntu.
I added the command

raw = np.frombuffer(raw, dtype=np.uint8) - after line 614 in the file mp_tile.py.

The problem was that after the icon was recorder the raw stayed in bytes, but it has to be changed to numpy array.

[stephendade]

Thanks for reporting this. It is indeed a bug and is fixed in #1584. Could you confirm this patch fixes your issue?