`pydot` failed to call GraphViz.Please install GraphViz (https://www.graphviz.org/) and ensure that its executables are in the $PATH.|dot" not found in path

pydot failed to call GraphViz.Please install GraphViz (https://www.graphviz.org/) and ensure that its executables are in the $PATH.|dot" not found in path

起码在windows平台，还是建议与其直接安装GraphViz，不如使用conda:conda install graphviz,我一开始直接安装完后环境变量不生效，重启powershell等等都不行，notebook里还是报错，用conda安装完了就没事了