title: xcode 10.2 & ionic 3 build error : duplicate symbols for architecture x86_64
body: <p>ld: 6 duplicate symbols for architecture x86_64
  clang: error: linker command failed with exit code 1 (use -v to see invocation)</p>
  
  <p>** BUILD FAILED **</p>
  
  <p>Any idea what is the problem ?</p>
  
  <p>can't build using xcode 10.2</p>
  
  <pre><code>ionic info
  
  Ionic:
  
     Ionic CLI          : 5.0.2 (/usr/local/lib/node_modules/ionic)
     Ionic Framework    : ionic-angular 3.9.2
     @ionic/app-scripts : 3.1.10
  
  Cordova:
  
     Cordova CLI       : 8.1.2 (cordova-lib@8.1.1)
     Cordova Platforms : ios 4.5.5
     Cordova Plugins   : cordova-plugin-ionic-keyboard 2.1.3, cordova-plugin-ionic-webview 1.2.1, (and 26 other plugins)
  
  Utility:
  
     cordova-res : 0.5.2
     native-run  : not installed
  
  System:
  
     ios-deploy : 1.9.4
     NodeJS     : v8.12.0 (/usr/local/bin/node)
     npm        : 6.9.0
     OS         : macOS Mojave
     Xcode      : Xcode 10.2.1 Build version 10E1001
  
  
  
  </code></pre>
  
  <pre><code>cordova plugin list
  
  call-number 0.0.2 "Cordova Call Number Plugin"
  com-badrit-base64 0.2.0 "Base64"
  cordova-open-native-settings 1.5.2 "Native settings"
  cordova-plugin-add-swift-support 2.0.2 "AddSwiftSupport"
  cordova-plugin-advanced-http 1.11.1 "Advanced HTTP plugin"
  cordova-plugin-android-permissions 1.0.0 "Permissions"
  cordova-plugin-app-version 0.1.9 "AppVersion"
  cordova-plugin-camera 4.0.3 "Camera"
  cordova-plugin-contacts 3.0.1 "Contacts"
  cordova-plugin-decimal-keyboard 1.0.0 "Decimal Keyboard"
  cordova-plugin-decimal-keyboard-wkwebview 1.0.3 "Decimal Keyboard"
  cordova-plugin-device 2.0.3 "Device"
  cordova-plugin-dialogs 2.0.2 "Notification"
  cordova-plugin-file 6.0.1 "File"
  cordova-plugin-geolocation 4.0.1 "Geolocation"
  cordova-plugin-googlemaps 2.6.2 "cordova-plugin-googlemaps"
  cordova-plugin-inappbrowser 3.0.0 "InAppBrowser"
  cordova-plugin-intercom 6.2.0 "Intercom"
  cordova-plugin-ionic-keyboard 2.1.3 "cordova-plugin-ionic-keyboard"
  cordova-plugin-ionic-webview 1.2.1 "cordova-plugin-ionic-webview"
  cordova-plugin-network-information 2.0.2 "Network Information"
  cordova-plugin-qrscanner 3.0.1 "QRScanner"
  cordova-plugin-splashscreen 5.0.3 "Splashscreen"
  cordova-plugin-statusbar 2.4.3 "StatusBar"
  cordova-plugin-uniquedeviceid 1.3.2 "UniqueDeviceID"
  cordova-plugin-whitelist 1.3.4 "Whitelist"
  cordova-plugin-x-socialsharing 5.4.7 "SocialSharing"
  cordova-sms-plugin 0.1.13 "Cordova SMS Plugin"
  cordova-sqlite-storage 2.6.0 "Cordova sqlite storage plugin"
  es6-promise-plugin 4.2.2 "Promise"
  phonegap-plugin-barcodescanner 8.1.0 "BarcodeScanner"
  
  
  </code></pre>
  
  <p>ld: 6 duplicate symbols for architecture x86_64
  clang: error: linker command failed with exit code 1 (use -v to see invocation)</p>
  
  <p>** BUILD FAILED **</p>
  
  <pre><code>
  The following build commands failed:
          Ld build/emulator/***************** normal x86_64
  (1 failure)
  CordovaError: Promise rejected with non-error: 'Error code 65 for command: xcodebuild with args: -***************** ... ******* ,-UseModernBuildSystem=0'
      at cli.catch.err (/usr/local/lib/node_modules/cordova/bin/cordova:30:15)
      at &lt;anonymous&gt;
      at process._tickCallback (internal/process/next_tick.js:189:7)
  [ERROR] An error occurred while running subprocess cordova.
  
          cordova build ios --verbose --buildFlag=-UseModernBuildSystem=0 exited with exit code 1. 
  </code></pre>