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Apple Releases Xcode 4.1.1 Via Mac App Store to Address Installation Alert Issue

Thursday August 4, 2011 2:13 pm PDT by Eric Slivka
Users looking to install the free Xcode 4.1 developer tools for OS X Lion released last month have been running into an issue that has caused difficulties with the installation process. During the installation process, users are prompted to quit iTunes if it is running, but the alert does not disappear even after iTunes has been quit and the installation remains stalled.

In Apple's support document on the issue, the company notes that users also need to quit the iTunesHelper process, which can be found in and exited from the Activity Monitor utility. Once iTunesHelper has been quit, the installation proceeds normally.

Apple today addressed that confusing behavior with the release of Xcode 4.1.1 through the Mac App Store, a small delta update that removes the installation alert that has been causing problems for users. Users who have already successfully installed Xcode 4.1 do not need to install the updated version.

What's New in Version 4.1.1

This is a delta update to Install Xcode.app that fixes the "Installation Alert" to quit iTunes. You do not need to re-run the installer if you already have Xcode 4.1 for Lion successfully installed, as the included tools are unchanged in this update.

Xcode 4.1.1 remains a free download in the Mac App Store, but does require OS X Lion.
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mbarriault
11 months ago
Tried again, it still said 3.17 GB but it only took a minute. Guess they just don't show the overall size of the delta.
Rating: 3 Positives / 0 Negatives
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res1233
11 months ago

I knew it was unnecessary, but I decided to grab the upgrade anyway just to get rid of the notification, since it was small... except it started to download 3.17 GB worth. Not exactly small. Are the delta updates not working yet?


No, it was a delta update. Are you sure you hadn't deleted the installer previously? It would redownload the entire thing if you had.

Delta Updates? Xcode? You are a funny guy.


Actually, Xcode should be coming in delta updates from now on. Apple mentioned at WWDC that Xcode 4.1 would be divided up into packages to reduce download size of updates, and if you check in the Install Xcode.app bundle, that's exactly what they did. It isn't perfect, but it seems we won't have to download the entire thing over again.

Hmm, I just noticed there's a package labeled "iPhoneSimulatorSDK4_3Patch1.pkg". That may mean that you won't even have to re-download entire packages in the future. I take it back. It seems like they did it perfectly! :D
Rating: 2 Positives / 1 Negatives
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mbarriault
11 months ago
I knew it was unnecessary, but I decided to grab the upgrade anyway just to get rid of the notification, since it was small... except it started to download 3.17 GB worth. Not exactly small. Are the delta updates not working yet?
Rating: 0 Positives / 0 Negatives
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Mr. Retrofire
11 months ago
Great! Thanks for the info!

;)
Rating: 0 Positives / 0 Negatives
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trsblader
11 months ago
Download took less than a minute for me. No 3.17 gb download here
Rating: 0 Positives / 0 Negatives
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KKramer
11 months ago
In my case it took a few seconds to download and install this update. Probably only a few megabytes.
Rating: 0 Positives / 0 Negatives
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Fazzl
11 months ago
Getting this error when updating. Any ideas?

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res1233
11 months ago

Getting this error when updating. Any ideas?

Image


I'd go into the Xcode installer package and verify that the SDK package is actually in the directory. Then I'd check permissions to make sure nothing got screwed up on that end. If those don't work, you might have to just re-download the Xcode installer, but it sounds like a permissions problem. Be sure to check the folder's permissions as well. If you have no idea what I'm talking about, feel free to ask. :)

They should use the LZMA algorithm to compress their packages (they use bzip2 and zlib (unoptimized version of the deflate algorithm), as part of the XAR framework. LZMA (compression level: Ultra & a 128 MB dictionary via "d=128m" in the 7-Zip GUI) compresses much better than these older algorithms.

http://tukaani.org/lzma/benchmarks.html
(yeah old)

and

@Apple: http://www.7-zip.org/sdk.html
;)


Not that I know why or anything, but bzip2 and gzip are very common compression algorithms. They're usually the compression formats of choice for source code.
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pewra
11 months ago

Not that I know why or anything, but bzip2 and gzip are very common compression algorithms. They're usually the compression formats of choice for source code.


Generally it's simply that they have almost no speed impact on file operations, 7z is insane when used on text, but source code isn't usually that big to begin with. That said, developers would be wise to use compression a lot more than they do now.

For comparison, this access log is 664Mb, when zbzip2'd is 227Mb, and when 7zip'd is just 21Mb. Impressive sure, but 7z took 15 minutes, and almost 3Gb of ram to achieve that (and it's mostly repeating, plain text).
Rating: 0 Positives / 0 Negatives
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KKramer
11 months ago
Hmm looks like it's same build number as 4.1 posted on 20 Jul: 4B110

I wonder what is updated then
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