title: Ionic iOS build error with google-plus plugin
body: <p>How to resolve the following error? I'm not sure where to start...When trying to build my Ionic project for iOS, I get the following error:</p>
  <pre><code>$ ionic cordova build ios
  ....
  /Plugins/cordova-plugin-googleplus/GooglePlus.h:2:9: fatal error: 'GoogleSignIn/GoogleSignIn.h' file not found
  #import &lt;GoogleSignIn/GoogleSignIn.h&gt;
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  1 error generated.
  </code></pre>
  <p>It works great on Android! But I'm not sure what to do about this iOS build error.
  My current version of the plugin is: 5.3.0 &quot;Google SignIn&quot;</p>
  <p>With the following info:</p>
  <blockquote>
  <p>cli packages:</p>
  <pre><code>@ionic/cli-utils  : 1.19.2
  ionic (Ionic CLI) : 3.20.0
  </code></pre>
  <p>global packages:</p>
  <pre><code>cordova (Cordova CLI) : 8.0.0
  </code></pre>
  <p>local packages:</p>
  <pre><code>@ionic/app-scripts : 3.1.9
  Cordova Platforms  : android 7.0.0 browser 5.0.3 ios 4.1.1
  Ionic Framework    : ionic-angular 3.9.2
  </code></pre>
  <p>System:</p>
  <pre><code>Android SDK Tools : 26.1.1
  ios-deploy        : 1.9.0
  ios-sim           : 5.0.11
  Node              : v8.11.1
  npm               : 6.0.0
  OS                : macOS Sierra
  Xcode             : Xcode 9.2 Build version 9C40b
  </code></pre>
  </blockquote>
  <hr />
  <p>UPDATE: It does seem like a dependency error in xcode.
  I am trying to manually add the GoogleSignin SDK using the instructions here: <a href="https://developers.google.com/identity/sign-in/ios/sdk/" rel="noreferrer">https://developers.google.com/identity/sign-in/ios/sdk/</a></p>
  <hr />
  <h3>Resolved:</h3>
  <p>In xcode, I dragged and dropped the following 3 files (GoogleSignIn.bundle, GoogleSignIn.framework, GoogleSignInDependencies.framework) from the Google Sign-In SDK - making sure to check the “Copy items into destination group’s folder (if needed)” option.</p>
  <p>Now when I build, the dependency to SignIn is resolved.</p>