SystemJS.config({ baseURL: '../../', map: { "plugin-babel": "lib/3rdparty/systemjs/plugin-babel.js", "systemjs-babel-build": "lib/3rdparty/systemjs/systemjs-babel-browser.js", "3rdparty": "lib/3rdparty/3rdparty.js", /* Don't know why these should be mapped?!? */ "d3-selection": "lib/3rdparty/d3/d3.js", "d3-transition": "lib/3rdparty/d3/d3.js", "TweenLite": "lib/3rdparty/greensock/src/uncompressed/TweenLite.js", "CustomEase": "lib/3rdparty/greensock/src/uncompressed/easing/CustomEase.js", "CSSPlugin": "lib/3rdparty/greensock/src/uncompressed/plugins/CSSPlugin.js" }, transpiler: "plugin-babel", meta: { "*.js": { authorization: true, babelOptions: { es2015: false } } } })