[ros-users] [Discourse.ros.org] [General] AssertionError: Could not find pytest

[Ram]

I used the below link to build ros2, 
https://github.com/ros2/ros2/wiki/Windows-Development-Setup

when i tried testing and running using,
> python src\ament\ament_tools\scripts\ament.py test

> python src\ament\ament_tools\scripts\ament.py test_results

i got an error,

Traceback (most recent call last):
  File "src\ament\ament_tools\scripts\ament.py", line 161, in <module>
    sys.exit(main() or 0)
  File "C:\dev\ros2\src\ament\ament_tools\ament_tools\commands\ament.py", line 88, in main
    rc = args.main(args)
  File "C:\dev\ros2\src\ament\ament_tools\ament_tools\verbs\test\cli.py", line 60, in main
    build_main(opts, test_pkg_main_wrapper)
  File "C:\dev\ros2\src\ament\ament_tools\ament_tools\verbs\build\cli.py", line 172, in main
    return iterate_packages(opts, packages, per_package_main)
  File "C:\dev\ros2\src\ament\ament_tools\ament_tools\verbs\build\cli.py", line 300, in iterate_packages
    rc = process_sequentially(jobs)
  File "C:\dev\ros2\src\ament\ament_tools\ament_tools\verbs\build\cli.py", line 340, in process_sequentially
    rc = job['callback'](job['opts'])
  File "C:\dev\ros2\src\ament\ament_tools\ament_tools\verbs\test\cli.py", line 50, in test_pkg_main_wrapper
    rc = test_pkg_main(opts)
  File "C:\dev\ros2\src\ament\ament_tools\ament_tools\verbs\test_pkg\cli.py", line 83, in main
    handle_build_action(on_test_ret, context)
  File "C:\dev\ros2\src\ament\ament_tools\ament_tools\verbs\build_pkg\cli.py", line 268, in handle_build_action
    for build_action in build_action_ret:
  File "C:\dev\ros2\src\ament\ament_tools\ament_tools\build_types\ament_python.py", line 118, in on_test
    assert pytest, 'Could not find pytest'
AssertionError: Could not find pytest

Please help me get over this issue. Thanks.





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