iOS apps: iPhone, iPad, or iPod touch running iOS 8 or later. iMessage apps and sticker packs require iOS 10 or later. tvOS apps: Apple TV running tvOS 9 or later. watchOS apps: Apple Watch running watchOS 2 or later. TestFlight is not available for Mac apps.

Install iOS 9 though iTunes on your Mac Connect your iOS device to your Mac using the sync cable and then launch iTunes. If iTunes already knows that the update is available, an alert will pop up iOS 8 - Wikipedia iOS 8 is the eighth major release of the iOS mobile operating system developed by Apple Inc., being the successor to iOS 7.It was announced at the company's Worldwide Developers Conference on June 2, 2014, and was released on September 17, 2014. It was succeeded by iOS 9 on September 16, 2015.. iOS 8 incorporated significant changes to the operating system Cannot Download iOS 13? Tips to Fix the Issue

Download and Install Grayed Out on iOS 11: Here's How to

How to Download and Install iOS 10 - AppleToolBox Sep 11, 2016 How To Install iOS? | Comprehensive Steps For iOS Installation

Believe it or not, forcing restart the device is always a sensible step when your iPhone stuck with such issues. And hence, we would suggest you to your iPhone/iPad when it is unable to install iOS 12. The steps for different iOS models are as follows: For iPhone 8, 8 Plus or X: You need to press the ‘Volume Up’ button and release it quickly.

Could not install from "android" as it does not contain a package.json file The problem, as Luigi Lopez points out in the comments, is you cannot create a folder called 'ios' or 'android' in the project root. It thinks you are wanting to install the platform from your local folder.