upgrade Xcode 3.2.4 to 4.2 on OS X 10.6.8 fails

Question

upgrade Xcode 3.2.4 to 4.2 on OS X 10.6.8 fails

I downloaded Xcode 4.2 for Snow Leopard (Disk Image) from Developer Downloads onto my MacBook running 10.6.8 with 2GB ram and 212GB free disk space.

I opened Xcode.mpkg directly from inside the .dmg and it seems fine until it gets to the actual "Installation" step. It says "Preparing XCode" for a moment and then says "The installation failed." Any suggestions for how to get 4.x Xcode on 10.6.8?

Below are some possibly useful screenshots.

MacBook, Mac OS X (10.6.8)

Posted on Mar 26, 2012 9:28 AM

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Answer 1

Best reply

K T

Level 7

23,877 points

Mar 26, 2012 9:42 AM in response to thunderrabbit

>I opened Xcode.mpkg directly from inside the .dmg

Try simply double-clicking on the installer to run so it can have a fair shot at failing & feeding back instead.

In any case, before running the installer always be sure to quit:

- Xcode

- Interface Builder

- Application Loader

- iTunes

- iTunes Helper via Activity Loader

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Answer 2

Mar 26, 2012 9:46 AM in response to thunderrabbit

Hmmmm I tried to rename /Developer but could not. I tried to move /Developer to a new location but could not. Perhaps it's simply a permissions issue. I'll

sudo mv /Developer to /old/Developer

and see if it will make me a sandwich install correctly.

. . .

I was able to move /Developer to /old, but the install still failed in the same place.

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Answer 3

Mar 26, 2012 9:52 AM in response to K T

> Try simply double-clicking on the installer to run so it can have a fair shot at failing & feeding back instead.

yes, that's what I did. Specifically, I double-clicked the .dmg to open it, then double-clicked the installer to run it.

And yes, everything has been quit except Firefox and Terminal. Maybe I'll reboot and try again.

But then, it's bedtime for me (2am). ;-)

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Answer 4

K T

Level 7

23,877 points

Mar 26, 2012 9:59 AM in response to thunderrabbit

Ah, sorry - I thought perhaps you were trying to command line something 🙂

Did you download over a wired or Wi-Fi connection?

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Answer 5

Mar 26, 2012 4:08 PM in response to K T

sorry for confusing language "open inside the .dmg".... I guess English wasn't designed to explain all this computer terminology! hahaha

I downloaded over Wi-Fi, but that didn't matter. Stay tuned for what actually fixed the problem.

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Answer 6

Mar 26, 2012 4:10 PM in response to thunderrabbit

It seems K T's suggestion of quitting Xcode was on the right track. I had quit XCode, but it seems that there must have been some residual processes chilling in the background.

Rebooting my machine did the trick.

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Answer 7

Mar 29, 2012 6:59 AM in response to thunderrabbit

I'm just trying to clarify if you meant Xcode 3.2.5/SDK4.0 or Xcode4.2...? I really want to find an Xcode4.2.dmg for Snow Leopard but nothing on the developer site seems to fit.

Can you give me the specific link for the dmg?

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