Command pio boards return error when project contains boards folder

When I run the command
pio board
I get this error

MacBook-Pro:Actuator_Test j***$ pio boards
AssertionError: Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/platformio/__main__.py", line 103, in main
    cli()  # pylint: disable=no-value-for-parameter
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/click/core.py", line 1157, in __call__
    return self.main(*args, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/click/core.py", line 1078, in main
    rv = self.invoke(ctx)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/platformio/cli.py", line 85, in invoke
    return super().invoke(ctx)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/click/core.py", line 1688, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/click/core.py", line 1434, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/click/core.py", line 783, in invoke
    return __callback(*args, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/platformio/commands/boards.py", line 34, in cli
    for board in _get_boards(installed):
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/platformio/commands/boards.py", line 75, in _get_boards
    return pm.get_installed_boards() if installed else pm.get_all_boards()
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/platformio/package/manager/platform.py", line 124, in get_all_boards
    boards = self.get_installed_boards()
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/platformio/util.py", line 56, in wrapper
    self.cache[key] = (time.time(), func(*args, **kwargs))
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/platformio/package/manager/platform.py", line 112, in get_installed_boards
    for config in p.get_boards().values():
  File "/Users/***.platformio/platforms/atmelsam/platform.py", line 105, in get_boards
    result[key] = self._add_default_debug_tools(result[key])
  File "/Users/***.platformio/platforms/atmelsam/platform.py", line 154, in _add_default_debug_tools
    assert openocd_chipname
AssertionError

============================================================

An unexpected error occurred. Further steps:

* Verify that you have the latest version of PlatformIO using
  `python -m pip install -U platformio` command

* Try to find answer in FAQ Troubleshooting section
  https://docs.platformio.org/page/faq/index.html

* Report this problem to the developers
  https://github.com/platformio/platformio-core/issues

============================================================

the error only happens when the folder “boards” is present in the project’s root

This is normal. Please remove the broken board manifest located in the “boards” folder.