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Initialize rosdep

6. Initialize rosdep​

sudo rosdep init
rosdep update --rosdistro humble

If sudo rosdep init reports that rosdep has already been initialized, ignore the message and continue with rosdep update.

If access to GitHub Raw times out, retry as follows:

curl -fL \
  --retry 8 \
  --retry-all-errors \
  --connect-timeout 20 \
  --max-time 300 \
  https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/sources.list.d/20-default.list \
  -o /tmp/20-default.list

sudo install -D -o root -g root -m 0644 \
  /tmp/20-default.list \
  /etc/ros/rosdep/sources.list.d/20-default.list

rm -f /tmp/20-default.list
rosdep update --rosdistro humble