title: Error while uploading Flutter App to App Store: Non-public API usage
body: <p>I am new in Flutter Development and i have developed an app with Webview.
  I have upload an apk on Google Play Store that is accepted but for App Store it shows some error.</p>
  
  <p>Please find below error,</p>
  
  <blockquote>
    <p>ITMS-90338: Non-public API usage - The app references non-public
    symbols in Frameworks/Flutter.framework/Flutter: _ptrace. If method
    names in your source code match the private Apple APIs listed above,
    altering your method names will help prevent this app from being
    flagged in future submissions. In addition, note that one or more of
    the above APIs may be located in a static library that was included
    with your app. If so, they must be removed.</p>
  </blockquote>
  
  <p>For this error i have search many things but i am unable found any solution for this.
  So please any one who is capable of solving this please help me to resolve this.</p>
  
  <p>Thanks &amp; Regards,</p>