问题描述
==> Generating debs for ubuntu:focal for package(s) ['deb_demo']
No homepage set, defaulting to ''
ValidationFailed: rosdep database is not initialized, please run:
sudo rosdep init
解决方案:
在/etc目录下新建/ros/rosdep/sources.list.d/20-default.list文件,将https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/sources.list.d/20-default.list内容添加进去。
sudo gedit /etc/resolv.conf,将将原有的nameserver这一行注释,并添加以下两行:nameserver 8.8.8.8 #google域名服务器 nameserver 8.8.4.4 #google域名服务器。
保存退出,执行sudo apt-get update