Check out this link (Running react-native run-ios occurs an error?). It appears to be a problem with the location of Command line tools. In Xcode, select Xcode menu, then Preferences, then Locations tab. Select your Xcode version from the dropdown and exit Xcode.
For Xcode 8.2 or later You can take videos and screenshots of Simulator using the xcrun simctl, a command-line utility to control the Simulator Run your app on the simulator Open a terminal Run the command To take a screenshot xcrun simctl io booted screenshot <filename>.<file extension> For example: xcrun simctl io booted screenshot myScreenshot.png … Read more
It’s just as simple as command+s or File > Save Screen Shot in iOS Simulator. It will appear on your desktop by default.
Use a simple Faraday cage to block or limit the external RF signal level. You can make your own with aluminum foil. The openings should be smaller than the wavelength of your data service if that’s what you want to block. 800 MHz has a 37 cm (14″) wavelength 1900 MHz has a 16 cm … Read more
I had the same issue. My solution was as follows: iOS Simulator -> Hardware -> Keyboard Uncheck “Connect Hardware Keyboard” Mine was checked because I was using my mac keyboard, but if you make sure it is unchecked the iPhone keyboard will always come up.