Cannot read property 'split' of undefined

[sakrist]

Got issue when I run node json2code.js test_schema.json VB

~/Downloads/json2code-master/json2code.js:154
      folder = path.join(folder, path.join(...pkg.split('.')));
                                                 ^
TypeError: Cannot read property 'split' of undefined

example scheme is http://json-schema.org/examples.html

node --version
v8.1.4
npm --version
5.3.0