First of all, you must ensure that you have installed routing and other plug-ins. In this case, select "Tools" - "Plug-ins" in the menu on the startup interface, and select the solisworks routing plug-in in the plug-in! ! You can also check the box after it when selecting, so that SolidWorks will automatically start this plug-in every time it starts, without you having to add it manually every time! ! !