title: tns command cannot be found
body: <p>When I type any "tns"-command in cmd. It just tells me, that this command cannot be found.</p>
  
  <p>I´ve been setting up an suiting programming environment for developing a small android app, as a project. I decided to use nativescript with angular, while coding in Microsoft Visual Studio Code und using an emulator from Android Studio. After a long setting up, due to two days working out the correct proxy settings with the help of my colleagues, my playground project first was displayed on the emulator yesterday. I was leaving for home in joy, just to come back today, to find out, i can´t run any tns command now. Thats why I can´t run the project again...</p>
  
  <p>Any ideas how to get it to work again, without reinstalling everything. I don´t want to lose the proxy settings again.</p>