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Xcode says I have 4.2 installed, but only 4.1 opens

Question:

I'm confused about this. When I go on the market or try to download 4.2 to get ios5 it says that it is Installed. I check my Xcode in the about section and it says it is running 4.1. I tried this Install Xcode that is in my applications folder assuming maybe it was for the update and it still shows 4.1. How do I update my xcode?

Answer1:

In your Applications folder, there is an app called <strong>Install Xcode</strong>. Run that to actually install Xcode4.2 after the App Store finishes downloading the upgrade. Weird, unexpected process, I know.

Answer2:

I had the same problem. After reading the answers here I looked for the "Install Xcode.app" file in the /Application directory and it wasn't there. It turns out that I had moved the "Install Xcode.app" bundle out of /Applications after I installed Xcode 4.1 (I didn't think it would be used again). I used Spotlight to remind me where I had moved it to and I ran it again and it updated the files. Now Xcode reports it is at version 4.2 like I expected. This is not at all like any other Apple installs. I wonder why they did it this way.

Answer3:

The App Store doesn't upgrade Xcode 4.1 to Xcode 4.2 for you like it does for all other apps. Instead, it just downloads an installer/upgrader which gets placed in your Applications folder, and proceeds to not tell you anything about it, hoping you can read its mind. To upgrade, you have to do this:

<ol><li>Download the update via App Store.</li> <li>Manually upgrade by running: /Applications/Install Xcode</li> </ol><hr />

Another way to do an upgrade will be to manually remove Xcode 4.x first:

<ol><li>Delete Xcode: $ sudo rm -r /Developer (takes about 20 minutes to finish)</li> <li>Delete any "Install Xcode" files from your Applications folder.</li> <li>Download Xcode 4.2 from the App Store.</li> <li>When finished, install it: <strong>Applications ---> Install Xcode</strong></li> <li>Re-download all Xcode Documents and Components: <strong>Xcode ---> Preferences ---> Downloads</strong></li> </ol>

That's the most extreme way of doing things. If you added anything to your /Developer folder, you should back it up before running the rm -r command, as that will delete EVERYTHING in it.

Your Xcode preferences will remain in-tact, as they're stored in ~/Library/Application Support/Xcode/ and ~/Library/Preferences/com.apple.dt.Xcode......plist

Answer4:

follow the instructions given in <a href="http://simplecodebits.blogspot.com/2011/10/update-to-xcode-42-in-mac-osx-lion.html" rel="nofollow">http://simplecodebits.blogspot.com/2011/10/update-to-xcode-42-in-mac-osx-lion.html</a>

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