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Cygwin64 no module named Pymavlink

Hey guys! I exactly went through the Cygwin Download and SITL but I get the error no module named Pymavlink. I did Pip install pymavlink/ python3 -m pip install pymavlink/pipwin install pymavlink( I was desperate lol). Any advices

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At which stage you get that error message?
Send us the complete command window output (as text or screenshot).
Did you get any error when installing pymavlink?


Okay. Here is the cygwin terminal:
I get the error when: …/Tools/autotest/ --map --console

Do you get the same error message when you do the below commands, try them.

  1. python -m pip install pymavlink
  2. cd Tools/autotest
  3. python --map --console

cd Tools/autotest: No Such File or directory

I assumed you are at the ardupilot directory.
cd ardupilot/Tools/autotest
Since you are out of the arducopter directory you might need to do
python -v ArduCopter --map --console

Hello I am getting the same error. I am not since why since I can see the module named pymavlink. It is located under /modules/mavlink/. Any help would be appreciated!

Had exactly the same issue, decided to run SITL on a VM running Ubuntu instead, works perfectly.

on running this command i am gettting python: can’t open file ‘’: [Errno 2] No such file or directory
this error help me out

I am still getting the same error as:
Traceback (most recent call last):
File “…/Tools/autotest/”, line 30, in
from pymavlink import mavextra
ModuleNotFoundError: No module named ‘pymavlink’

I tried to install pymavlink separately and I got this error:

ERROR: Command errored out with exit status 1:
command: /usr/bin/python -u -c ‘import sys, setuptools, tokenize; sys.argv[0] = ‘"’"’/tmp/pip-install-v1wnz5ax/lxml_5990454f613d4e968eeaed9d73812175/’"’"’; file=’"’"’/tmp/pip-install-v1wnz5ax/lxml_5990454f613d4e968eeaed9d73812175/’"’"’;f=getattr(tokenize, ‘"’"‘open’"’"’, open)(file);’"’"’\r\n’"’"’, ‘"’"’\n’"’"’);f.close();exec(compile(code, file, ‘"’"‘exec’"’"’))’ install --record /tmp/pip-record-gqvggv1h/install-record.txt --single-version-externally-managed --compile --install-headers /usr/include/python3.7m/lxml
cwd: /tmp/pip-install-v1wnz5ax/lxml_5990454f613d4e968eeaed9d73812175/
Complete output (86 lines):


These pymavlink issues are coming up with many people on the native windows build. Check
Unable to finish setting up SITL on windows - General - ArduPilot Discourse

Pip installation fails · Issue #222 · ArduPilot/pymavlink (

Always worth a shot installing pymavlink seperately. Link:
MAVProxy crashes after reinstallation, when adding new MAVLink message · Issue #623 · ArduPilot/MAVProxy (

Hello, have you solved this problem? I have exact the same issue

No I couldnt sorry :frowning:

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