ROS2, Building from source problem (macOS)

Next Generation ROS
1

Hello, I was trying to install the ROS2 according to the instruction here: GitHub - ros2/ros2: The Robot Operating System, is a meta operating system for robots.
Everything was fine until the section “Get the ROS2 code”

mkdir -p ~/ros2_ws/src
cd ~/ros2_ws
wget https://raw.githubusercontent.com/ros2/ros2/release-latest/ros2.repos
vcs import src < ros2.repos

when I try to execute the last command, I get this error:

$ vcs import src < ros2.repos
stty: stdin isn’t a terminal
Video Contact Sheet *NIX v1.13.2, (c) 2007-2014 Toni Corvera
Unable to locate DejaVu Sans font. Falling back to helvetica.
File “import” doesn’t exist
File “src” doesn’t exist
stty: stdin isn’t a terminal

Anyone knows why?

Another question is, what’s the difference between building from binariy packages and building from source ?
If I want to build a ROS1<->2 bridge, then I have to build from source right?

(For the website maintainer:
You might want to consider adding “–user” in the following instruction:

python3 -m pip install empy setuptools nose vcstool pep8 pydocstyle pyflakes flake8 mock coverage
in case that any newbies like me who doesn’t have root permission, to have problems installing.)

2

With respect to the stty: stdin isn't a terminal, I have no idea. Are you pasting that command into a normal terminal (using Terminal.app or iTerm2.app or something)?

You have to build from source if you want the ROS 1 ↔ ROS 2 bridge on OS X. Our Linux binary has the ROS 1 ↔ ROS 2 bridge built for ROS Kinetic on Xenial, but otherwise you have to build the bridge from source.

3

Thank you for you reply. Yes, I am using a normal Terminal.app

4

So, these are my experience solving these problems:
Tools like vcstool need to be located in usr/local/bin. So always use “sudo” when installing.
(e.g. sudo python3 -m pip install empy setuptools nose vcstool )
Test every tool in Terminal first, make sure they are installed properly before going for ament build.

5

@Kloping thanks! without really thinking I installed “vcs” using brew, however that is not vcstool, but video contact… something. So the command of course failed, but uninstalled and installed vcstool using pip and it worked :slight_smile: