ubuntu20.04安装ros？

https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/sources.list.d/20-default.list
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ubuntu20.04安装ros

求解决办法

https://zhuanlan.zhihu.com/p/336811742

https://blog.csdn.net/qq_44339029/article/details/120579608
可以试试这个