title: Xcode 8 build failed: Signing for "ProjectName" requires a development team
body: <p>I recently downloaded a tutorial project from web and gonna follow the tutorial to try some features. When I build the project the follow message appeared:</p>
  
  <pre><code>Signing for "ProjectName" requires a development team.
  Select a development team in the project editor.
  </code></pre>
  
  <p>For my real project I will select my development team but this one is only for testing and tutorial purpose. Do I need to select a team in order to run the app? If I choose a personal team, another error thrown out:
  Failed to create provisioning profile.</p>
  
  <pre><code>The app ID "xx.xx" cannot be registered to your development team. Change your bundle identifier to a unique string to try again.
  
  No profiles for 'xx.xx' were found
  Xcode couldn't find a provisioning profile matching 'xx.xx'.
  </code></pre>
  
  <p>Seems Xcode 7 can build the project without specifying a team.</p>