refs:
https://stackoverflow.com/questions/43849585/update-node-version-in-visual-studio-2017
使用vs2017外部的webtools
bower in VS2017 is not working
Tools > Options > Projects and Solutions > Web Package Management > External Web Tools
Then you need to add your Node install directory to the top of the list, like so:
You don't need to add a new Node install directory, Node exists in PATH. Notice how $(PATH) is below the internal path $(DevEnvDir)\Extensions\Microsoft\Web Tools\External.
To use the global PATH environment variable before the internal path, you can just use the arrows at the top-right to change the order.