iOS Simulator failed to install the application after installing a new macosx

Question

I've copied my Xcode.app ( Version 5.1.1 / Ios 7.1 ) from Application folder and then i've installed a new MacOSX 10.9.4 After moving it back to the application folder it run perfectly except the ioS applications.

When i'm trying to run any ioS application on simulator, i built successfully but i got this message and the simulator doesn't run the app

iOS Simulator failed to install the application.

I've tried the solutions that other people provided here like (Reset content and settings .. delete the folders in Library/Developers/Xcode and Library/ApplicationSupport/ios simulator ) but also it doesn't solve this issue :/

Answer 1

Deleting contents of ~/Library/Application Support/iPhone Simulator and re-run the project solved this problem. or you can simply reset content and setting of the simulator.

iOS Simulator failed to install the application

or try this

https://discuss.appium.io/t/ios-simulator-failed-to-install-the-application/81