TypeError: Cannot read property 'properties' of undefined

[giacomolm]

While running npm run build I got the following error

describe: optionsSchema.definitions.output.properties.path.description,

TypeError: Cannot read property 'properties' of undefined

As suggested here [1], bumping the webpack-cli to 3.1.1 solved my issue.

[1] https://github.com/webpack/webpack-cli/issues/607