the rosdep view is empty: call 'sudo rosdep init' and 'rosdep update'

When repair ros recording package, execute a command, report this error, do not understand the reasons being given, to find a temporary solution, refer to: https: //blog.csdn.net/u010918541/article/details/50445415

 

1, Sudo rm /etc/ros/rosdep/sources.list.d/20-default.list

２、sudo rosdep init

3, rosdep update here can not add sudo

 

Because there is always an error, the third step is to focus on can be resolved without sudo

ERROR: unable to process source [https://raw.githubusercontent.com/ros/rosdistro/master/releases/fuerte.yaml]:

 

Not the same place is to increase the distro, you can see is updated.

Skip end-of-life distro "ardent"
Skip end-of-life distro "bouncy"
Skip end-of-life distro "crystal"
Add distro "dashing"
Add distro "eloquent"
Add distro "foxy"
Skip end-of-life distro "groovy"
Skip end-of-life distro "hydro"
Skip end-of-life distro "indigo"
Skip end-of-life distro "jade"
Add distro "kinetic"
Skip end-of-life distro "lunar"
Add distro "melodic"
Add distro "noetic"
updated cache in /home/ht/.ros/rosdep/sources.cache
ERROR: Not all sources were able to be updated.