achmad zaenuri

production build error on latest ionic

9

ionic info: ``` Your system information: Cordova CLI: 6.5.0 Ionic CLI Version: 2.2.1 Ionic App Lib Version: 2.2.0 ios-deploy version: 1.9.0 ios-sim version: 5.0.8 OS: macOS Sierra Node Version: v7.7.3...