How to uninstall multiple Xcode instances in OS X 10.9

Question

I have multiple Xcode Apps installed in OS X 10.9.2 to check the compatibility. Now I am facing a problem when I run the app, this error occurs "iOS simulator failed to install the application". I want uninstall all Xcode completely to reinstall latest Xcode 5.1. How can I do that? Thanks.

Xcode Instances

• /Applications/Xcode.app (Xcode v5.0.2)
• ~/Apps/Xcode.app (Xcode v4.6)

Answer 1

Use Appcleaner

or

Just drag and drop Xcode to trash from app folder

Answer 2

Looks like this is a known issue. From the -->>

https://developer.apple.com/library/ios/releasenotes/DeveloperTools/RN-Xcode/Introduction/Introduction.html

• **After switching the minimum deployment target of an application from iOS 7.0 to a release prior to iOS 7.0, building and running the application may fail with the message “iOS Simulator failed to install the application.

” Go to the iOS home screen, click and hold the application icon, then tap the hovering “X” button to delete the application.

**

Another release note:

• iOS Simulator If an iOS app is detached, relaunching the same app from Xcode will result in a black screen in the Simulator even though the new app is launched. Terminate the app in the Simulator or relaunch it for the second time.

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Answer 3

if you have already developed project and you used xib to develop views then

X-Code > Inspector Selector Bar > Interface Builder Document > opens in > and change from Xcode Default(5.o) to Xcode 4.6 .

Build and Run your app it will run successfully, if it won't run again then, header over to iOS Simulator - Reset Content and Settings. delete old app from simulator then Run again.