I ran into a tricky TypeScript build issue with an Angular app that would build successfully on a Windows 10 machine but failed to build on a Linux machine with a "Cannot find module" error. The cause of the problem ended up boiling down to a single case-sensitive character, "X" instead of "x".
The Angular 2 quick start walks you through setting up and running a very simple Angular 2 application. If you are trying to complete the quick start in Visual Studio Code (VS Code), there are a few extra steps to complete before you can build and run the application. This article discusses how to run the Angular 2 quick start application in VS Code using the lite-server NPM module. You can see the complete source code referenced in this article on GitHub in the briandesousa/angular2-quickstart-vscode repository.