I have the same problem after updating Ionic CLI to 1.7.13. I tried to drowngrade to 1.7.12 but nothing changed.
▶ cordova plugin list
cordova-plugin-console 1.0.2 "Console"
cordova-plugin-crosswalk-webview 1.5.0 "Crosswalk WebView Engine"
cordova-plugin-device 1.1.0 "Device"
cordova-plugin-splashscreen 3.1.0 "Splashscreen"
cordova-plugin-statusbar 2.0.0 "StatusBar"
cordova-plugin-whitelist 1.2.1 "Whitelist"
ionic-plugin-keyboard 1.0.8 "Keyboard"
`▶ ionic info
Your system information:
Cordova CLI: 5.4.1
Gulp version: CLI version 3.9.0
Gulp local: Local version 3.9.0
Ionic Version: 1.2.4
Ionic CLI Version: 1.7.12
Ionic App Lib Version: 0.6.5
ios-deploy version: 1.8.4
ios-sim version: 5.0.6
OS: Mac OS X El Capitan
Node Version: v5.4.0
Xcode version: Xcode 7.2 Build version 7C68`