Why is there a white screen when I launch an ios app??

Question

iOS

I decided to rebuild the old application under cordova 4. 1. 1 xcode 6 and under sdk 8.1. I create a new hello word project as described in the guide, and instead of the standard folders of the created application, I insert my finished project created under the old version of cordova. The assembly is successful, but after launch, a white screen appears on the device ((How to deal with this? And how to track what is happening in general?

Answer 1

Safari has remote debugging. Run the project in the simulator and connect to it from Safari (menu item "Development").