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ros-tooling / cross_compile

A tool to build ROS and ROS2 workspaces for various targets
Apache License 2.0
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cross_compile problem on sysroot_compile.py #41

Closed JoelinChee closed 4 years ago

JoelinChee commented 4 years ago

Hello, everyone! Sorry to bother you. I have one question when I cross compile ros2.

when I Install prerequisites and Installing from source. However, when I do

colcon build --packages-up-to cross_compile,

Here come a problem,

Starting >>> cross_compile --- stderr: cross_compile
File "/home/pibotvm/ros2_cross_compile_ws/install/cross_compile/lib/python3.5/site-packages/cross_compile/sysroot_compiler.py", line 84 SYSROOT_DIR_NAME: str = 'sysroot' ^ SyntaxError: invalid syntax

Finished <<< cross_compile [3.32s]

Does anyone know how to solve this problem?

THX.

deitry commented 4 years ago

Possibly it is due to Python 3.5 version. What kind of OS and Python you are using?

On Kubuntu 18.04, which I am using, Python 3.6 installed from official repos handles this correctly.

piraka9011 commented 4 years ago

Syntax for variable annotations were not added until Python 3.6 (See PEP-526). You are running 3.5.

I recommend you upgrade your Python version to 3.6+ to use this.

JoelinChee commented 4 years ago

THX deitry, THX piraka9011. I have changed Python 3.5 to Python 3.6. And It works.