$ gulp build-app
[16:57:08] Using gulpfile D:\wamp\www\mysite\gulpfile.js
[16:57:08] Starting 'build-app'...
D:/wamp/www/mysite/node_modules/ng2-uploader/ng2-uploader.ts(1,1): error TS2654: Exported external package typings file cannot contain tripleslash references. Please contact the package author to update the package definition.
D:/wamp/www/mysite/node_modules/ng2-uploader/ng2-uploader.ts(1,1): error TS6053: File 'D:/wamp/www/mysite/node_modules/ng2-uploader/node_modules/angular2/typings/browser.d.ts' not found.
[16:57:11] TypeScript: 2 semantic errors
[16:57:11] TypeScript: emit succeeded (with errors)
[16:57:11] Finished 'build-app' after 2.61 s