[solved] No longer getting require() or import suggestions on Opt-Enter (context menu)

It used to be that if I had code like this: someOtherModule.functionFoo()

but I had forgotten to require or import the module,

then the Opt-Enter menu would auto-suggest to me to 'require' or to 'import' someOtherModule. (I think it found it by looking for functionFoo exports.)

If chosen, it would put a new 'require' or 'import' line near the top of the file. Nice!

Somehow this functionality has been lost from my WebStorm. Any idea how I can get it back?

I care most when `someOtherModule` is a module defined in my project, and not a node_module, but of course support for both would be best.

My environment:

I recently upgraded NodeJS from 4.2.2 to 8.1.2 (using nvm; multiple Node versions installed). It is possible that this is what triggered the issue.

I have just installed the latest version of WebStorm. (Before that, I could not Enable "Node.js Core library" for Node v8.1.2.)