I believe the problem is related to updating angular 2. My actual sequence of events that led to this error was 1. installing ng2-typeahead, 2. getting errors and realizing I needed to install FormsModule, 3. getting more errors and npm updating everything. The line of code that errors in /node_modules/@angular/common/bundles/common.umd.js:3481:36) is
/**
* @stable
*/
var /** @type {?} */ VERSION = new _angular_core.Version('2.3.0');
NPM debug log at npm-debug.log at pastebin.
There is a conflict between angularcli@1.0.0-beta.22-1 and angular@2.3.0. Try to rollback your dependencies to angular-cli@1.0.0-beta.21 and angular@2.2.4, also, the typescript sould be 2.0.3+.