title: Angular2 Installing dialog-polyfill for IE11 fails
body: <p>I am trying to get dialogs to work with IE11 and found out that I have to install a polyfill. I tried to install it via npm and get multiple errors and I do not know how to fix them.</p>
  
  <p><strong>Errors</strong></p>
  
  <pre><code>npm ERR! Windows_NT 10.0.14393
  npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "dialog-polyfill"
  npm ERR! node v4.5.0
  npm ERR! npm  v2.15.9
  npm ERR! code EPEERINVALID
  
  npm ERR! peerinvalid The package typescript@1.8.10 does not satisfy its siblings' peerDependencies requirements!
  npm ERR! peerinvalid Peer @angular/compiler-cli@0.5.0 wants typescript@^1.9.0-dev
  npm ERR! peerinvalid Peer tsickle@0.1.6 wants typescript@^1.8.0 || ^1.9.0-dev
  npm ERR! peerinvalid Peer @angular/tsc-wrapped@0.2.2 wants typescript@^1.9.0-dev`
  </code></pre>
  
  <p>Any solutions?</p>