Node.js: Runtime ReferenceError in generated code

thrift.exe --gen js:node,ts,es6,with_ns tutorial.thrift

Calculator.js:382 Uncaught ReferenceError: Must call super constructor in derived class before accessing 'this' or returning from derived constructor
    at new e.Client (Calculator.js:382)
    at Object.t.exports (create_client.js:50)
    at Module.<anonymous> (main.js:12)
    at r (bootstrap:19)
    at bootstrap:83
    at webpack-client.js:1
e.Client @ Calculator.js:382
t.exports @ create_client.js:50
(anonymous) @ main.js:12
r @ bootstrap:19
(anonymous) @ bootstrap:83
(anonymous) @ webpack-client.js:1