Hi,
I'd like to know how to setup ROS2 environment on arm platforms. I thought simply executing local_setup.bash can get all the things ready. But it doesn't work.
I build up ROS2 in cross-compilation environment on X86 PC. After the building completes, I just copy the install directory to an arm64 platform. I create the same directory on arm platform as that on X86 PC.
I execute local_setup.bash on arm but the ROS2 binary cannot be found. Besides, It seems that some modules are neither found. For example, I get an error show as below when I run ROS2 command.
Traceback (most recent call last):
File "./ros2", line 5, in <module>
from pkg_resources import load_entry_point
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2927, in <module>
@_call_aside
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2913, in _call_aside
f(*args, **kwargs)
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2940, in _initialize_master_working_set
working_set = WorkingSet._build_master()
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 635, in _build_master
ws.require(__requires__)
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 943, in require
needed = self.resolve(parse_requirements(requirements))
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 829, in resolve
raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'ros2cli==0.4.0' distribution was not found and is required by the application
Could you please tell me how to adjust local_setup.bash on arm platform so I can execute it as on X86 PC?
Updates:
After set AMENT_TRACE_SETUP_FILES, the output of local_setup.bash is showed as below.
This code block was moved to the following github gist: https://gist.github.com/answers-se-migration-openrobotics/f053dea359c6a74f5bcaf9d4cf01b265
The output of PYTHONPATH is empty. The python library in use is:
['', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-aarch64-linux-gnu', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages']
I follow ros2-for-arm cross-compilation instructions to build ROS2. The host X86 PC is Ubuntu 16.04 x86_64.
The arm64 platform is a Hikey960 board with Ubuntu 16.04 aarch64 version.
Originally posted by davidhuziji on ROS Answers with karma: 16 on 2018-04-09
Post score: 0