How to run React Native app on iOS device

Command Prompt (in windows) or terminal (macOS) is a very necessary tool for creating React Native application . You have to use this tool in every step of React-Native app development process, like to create a React-Native project, install different libraries or run the project in the simulator or in a real device.

React Native - CFBundleIdentifier Does Not Exist

"CFBundleIdentifier Does Not Exist" (Image 1) - is a very common error faced by many React Native app developers. Especially who have old XCode and latest Rect Native. I spend almost a day to solve this problem. But did not find any solution. Then suddenly something clicks on my mind. I tried that trick and TADA this error is solved.

React Native - Missing Realm Constructor

Realm is the most famous local database for any mobile platform. It is very easy to use. Another reason of it's popularity is, this database system is faster than other database systems. You can quickly get result if you query on it. This database can be used for Java, Swift, Objective - C, .Net and JavaScript (that means React Native 👍 ) .

-[__NSSingleObjectArrayI dataUsingEncoding:] Objective C

Few days back, I was trying to parse a JSON string which I was getting from the server. Parsing