Problem with catkin_make

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最近在用catkin_make 编译时,出现

ImportError: “from catkin_pkg.topological_order import
topological_order” failed: No module named ‘catkin_pkg’ Make sure that
you have installed “catkin_pkg”, it is up to date and on the
PYTHONPATH.

检查发现,之前安装过python的新版本,于是将python版本切换到之前安装ros的版本,成功解决问题。

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