It is always necessary to update your plugins, as the syntax keeps changing, and then keep moving.
Here's what I recommend fixing:
1) npm install -g npm-check-updates
2) npm-check-updates -u
3) rm -fr node_modules
4) npm install
It basically installs npm-check-updates around the world, runs it against your package.json, and updates the dependency versions. Then you simply delete the node modules folder and reinstall.
aneeshjajodia
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