TypeError: Error loading "app/App" at http://localhost:9000/app/App.js Cannot convert object to primitive value

When i clone and do a npm start, this error occurs

Same issue here. node v6.9.5 npm v4.2.0 windows 7

Should also note, it doesn't occur on the npm start command. npm start succeeds and calls the gulp tasks. The error is logged to the console when accessing http://localhost:9000.

TypeError: Error loading "app/App" at http://localhost:9000/app/App.js Cannot convert object to primitive value at extension-register.js:262 at Array.setters.$__export.uninitialized (angular2.js:144) at linkDeclarativeModule (extension-register.js:321) at linkDeclarativeModule (extension-register.js:305) at linkDeclarativeModule (extension-register.js:305) at link (extension-register.js:233) at Object.execute (extension-register.js:547) at doDynamicExecute (es6-module-loader-sans-promises.src.js:654) at link (es6-module-loader-sans-promises.src.js:702) at doLink (es6-module-loader-sans-promises.src.js:476)