title: Use an unlimited hash key Android (Ionic 3)
body: <p>I'm creating my app with Ionic 3 and I set up a connection via facebook, but after generating my hash key and after the build, I can connect only once to Facebook.. </p>
  
  <p>After this, I have this message : </p>
  
  <blockquote>
    <p>Invalid key hash. The key hash ..... dos not match any stored key
    hashes at <a href="https://developers.facebook.com/apps/.../dashboard/" rel="nofollow noreferrer">https://developers.facebook.com/apps/.../dashboard/</a></p>
  </blockquote>
  
  <p>My steps :</p>
  
  <ul>
  <li>Create Facebook app</li>
  <li>Add Android platform</li>
  <li>Add the Build ID</li>
  <li>Run the command :</li>
  </ul>
  
  <blockquote>
    <p>keytool -exportcert -alias androiddebugkey -keystore %HOMEPATH%.android\debug.keystore | openssl sha1 -binary | openssl base64</p>
  </blockquote>
  
  <ul>
  <li>Add Key Hash</li>
  <li>Run the command : </li>
  </ul>
  
  <blockquote>
    <p>ionic build android</p>
  </blockquote>
  
  <p>I can only log in once, after my key hash is not valid</p>