WebStorm - Unresolved variable or type - Sails / module.export [duplicate]

Answer 1

Seems you need to enable Node Core library (as lena also commented),
Within WebStorm:

1. Go to File -> Settings -> Languages & Frameworks -> Node.js and NPM
2. Make sure that 'Node.js Core library is enabled' by pressing Enable button.
3. Click OK for saving settings.
   

NOTE: Make sure you do it within 'Settings' and not only in 'Default Settings'