ERR_INVALID_CALLBACK

[cunneen]

I was getting the error below from webpack-version-file-plugin; updating that npm module to v0.4.0 seemed to do the trick i.e. npm i -D [email protected]

fs.js:144
  throw new ERR_INVALID_CALLBACK(cb);
  ^

TypeError [ERR_INVALID_CALLBACK]: Callback must be a function. Received { flag: 'w' }
    at maybeCallback (fs.js:144:9)
    at Object.writeFile (fs.js:1325:14)
    at VersionFile.writeFile (chrome-extension-skeleton/node_modules/webpack-version-file-plugin/index.js:57:8)