ros计算图时ModuleNotFoundError: No module named 'pydot'

当你在运行ROS计算图时遇到了ModuleNotFoundError: No module named 'pydot'的错误，这是因为你的系统中没有安装pydot库。你可以通过以下步骤解决这个问题：

1. 打开终端，并确保你已经进入了ROS环境。
2. 输入以下命令来安装pydot库：pip install pydot。

这样就可以解决ModuleNotFoundError: No module named 'pydot'的错误了。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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