Build With `colcon`

Build With colcon

From the workspace root:

cd ~/ros2_ws
colcon build

The official tutorial shows package-by-package start/finish messages followed by a summary.

Read the output

Do not treat a scrolling terminal as proof of success.

Look for:

• which packages started;
• which packages finished;
• whether a package failed;
• final summary.

Useful bounded options

The source tutorial mentions options including:

colcon build --packages-select <package>
colcon build --symlink-install
colcon build --executor sequential

For this course:

• --packages-select becomes useful when you create your own package;
• --symlink-install is especially useful during Python development;
• --executor sequential can make logs easier to read on small systems.

Do not add flags just because they exist.

Checkpoint

Capture the final build summary and identify which package(s) actually built.