App stuck at white screen on cordova-iOS@4.0.1

Cordova CLI: 5.4.1 Gulp version: CLI version 3.9.0 Gulp local: Local version 3.9.0 Ionic Version: 1.2.1-nightly-1867 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: v5.5.0 Xcode version: Xcode 7.2 Build version 7C68 npm -v : 3.5.3 bower -v : 1.7.2 cordova platform : Installed platforms: android 5.0.0, ios 3.9.2 Available platforms: amazon-fireos, blackberry10, browser, firefoxos, osx, webos Android tools and Platform-tools : Pkg.Revision=24.4.1 Pkg.Revision=23.1 brew config : HOMEBREW_VERSION: 0.9.5 ORIGIN: https://github.com/Homebrew/homebrew HEAD: fe93aa31618eaf59f114dd838f0e1fcd474cdf32 Last commit: 8 hours ago HOMEBREW_PREFIX: /usr/local HOMEBREW_REPOSITORY: /usr/local HOMEBREW_CELLAR: /usr/local/Cellar HOMEBREW_BOTTLE_DOMAIN: https://homebrew.bintray.com CPU: quad-core 64-bit ivybridge OS X: 10.11.2-x86_64 Xcode: 7.2 CLT: 7.2.0.0.1.1447826929 Clang: 7.0 build 700 X11: N/A System Ruby: 2.0.0-p645 Perl: /usr/bin/perl Python: /usr/local/bin/python => /usr/local/Cellar/python/2.7.11/Frameworks/Python.framework/Versions/2.7/bin/python2.7 Ruby: /Users/jagdish/.rbenv/shims/ruby => /Users/jagdish/.rbenv/versions/2.3.0/bin/ruby Java: 1.8.0_72 psql --version: psql (PostgreSQL) 9.5.0