xcode iconUsers 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.

Top Rated Comments

mbarriault Avatar
178 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.
Score: 3 Votes (Like | Disagree)
res1233 Avatar
178 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
Score: 1 Votes (Like | Disagree)
cragmr Avatar
178 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?

Delta Updates? Xcode? You are a funny guy.
Score: -5 Votes (Like | Disagree)

Popular Stories

iOS 19 Mock WWDC25 Feature

iOS 19 Expected to Run on These iPhones

Monday March 31, 2025 5:28 pm PDT by
iOS 19 will not be available on the iPhone XR, iPhone XS, or the iPhone XS Max, according a private account on social media site X that has accurately provided information on device compatibility in the past. The iPhone XR, iPhone XS, and iPhone XS Max all have an A12 Bionic chip, so it looks like iOS 19 will discontinue support for that chip. All other iPhones that run iOS 18 are expected...
maxresdefault

Apple Releases iOS 18.4 With Priority Notifications, Ambient Music, New Emoji and More

Monday March 31, 2025 10:03 am PDT by
Apple today released iOS 18.4 and iPadOS 18.4, the fourth major updates to the iOS 18 and iPadOS 18 operating system updates that came out last year. iOS 18.4 and iPadOS 18.4 come two months after Apple released iOS 18.3 and iPadOS 18.3. Subscribe to the MacRumors YouTube channel for more videos. The new software can be downloaded on eligible iPhones and iPads over-the-air by going to...
watchOS 11 Thumb 2 1

Apple Releases watchOS 11.4 With Sleep Alarm Update

Tuesday April 1, 2025 10:34 am PDT by
Apple today released watchOS 11.4, the fourth major update to the operating system that runs on the Apple Watch. watchOS 11.4 is compatible with the Apple Watch Series 6 and later, all Apple Watch Ultra models, and the Apple Watch SE 2. watchOS 11.4 can be downloaded on a connected iPhone by opening up the Apple Watch app and going to General > Software Update. To install the new software,...
AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 2 and AirPods 4

Monday March 31, 2025 11:27 am PDT by
Apple today released new firmware updates for all AirPods 4 and AirPods Pro 2 models. The new firmware is version 7E93, up from the 7B21 firmware that was installed on the AirPods Pro 2 and the 7B20 firmware available on the AirPods 4 and AirPods 4 with ANC. It is not immediately clear what new features or changes are included in the new firmware, but we'll update this article should we find ...
macOS Sequoia Feature

Apple Releases macOS Sequoia 15.4 With Mail Categorization and More

Monday March 31, 2025 10:04 am PDT by
Apple today released macOS Sequoia 15.4, the fourth major update to the macOS Sequoia operating system that launched in September. macOS Sequoia 15.4 comes two months after the launch of macOS Sequoia 15.3. Mac users can download the ‌‌macOS Sequoia‌‌ update through the Software Update section of System Settings. It is available for free on all Macs able to run macOS 15. With...
iPhone 17 Pro 34ths Perspective

iPhone 17 Pro Launching Later This Year With These 10 New Features

Sunday March 23, 2025 10:00 am PDT by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models as of March 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...
Apple Card iPhone 16 Pro Feature

Visa and American Express Vying to Win Apple Card Deal in 'Fierce' Fight

Tuesday April 1, 2025 1:50 pm PDT by
Visa wants to pay Apple approximately $100 million to be the new payment network for the Apple Card, reports The Wall Street Journal. As of right now, the Apple Card is on the Mastercard payment network, but that is set to change because Apple is ending its partnership with Goldman Sachs. Both American Express and Visa are vying to replace Mastercard as Apple's card services provider, while...