title: Could not start debugserver on “D’s iPhone” when trying to launch “Name of app”
body: <p>I'm working on an iOS app, written in Swift. I try to run it on my iPhone 6S as a testing device but I get this error and I cannot figure out how to get around it:</p>
  
  <p><code>Could not start debugserver on “D’s iPhone” when trying to launch “Name of app”</code></p>
  
  <p>MacOS X is 10.13.3, Xcode 9.2 (since it's the stable version, not beta) and my iPhone runs 11.2.6 version</p>
  
  <p>I tried restarting my phone, reconnecting the USB, connect via network. Nothing. It installs the app but it doesn't run it.</p>