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
179 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
179 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
179 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

AirPods Pro 3 Mock Feature

AirPods Pro 3 Just Months Away – Here's What We Know

Friday April 18, 2025 5:16 am PDT by
Despite being more than two years old, Apple's AirPods Pro 2 still dominate the premium wireless‑earbud space, thanks to a potent mix of top‑tier audio, class‑leading noise cancellation, and Apple's habit of delivering major new features through software updates. With AirPods Pro 3 widely expected to arrive in 2025, prospective buyers now face a familiar dilemma: snap up the proven...
iphone 17 air dummy unbox therapy

iPhone 17 Air's Extreme Thinness Demoed in New Video

Tuesday April 22, 2025 10:22 am PDT by
Apple plans to release an all-new super thin iPhone this year, debuting it alongside the iPhone 17, iPhone 17 Pro, and iPhone 17 Pro Max. We've seen pictures of dummy models, cases, and renders with the design, but Lewis Hilsenteger of Unbox Therapy today showed off newer dummy models that give us a better idea of just how thin the "iPhone 17 Air" will be. The iPhone 17 Air is expected to be ...
iphone 17 dummies sonny dickson

iPhone 17 Air Almost as Thin as Its Buttons, New Images Show

Thursday April 24, 2025 2:14 am PDT by
If you missed the video showing dummy models of Apple's all-new super thin iPhone 17 Air that's expected later this year, Sonny Dickson this morning shared some further images of the device in close alignment with the other dummy models in the iPhone 17 lineup, indicating just how thin it is likely to be in comparison. The iPhone 17 Air is expected to be around 5.5mm thick – with a thicker ...
ipad air windows 11 arm

M2 iPad Air Runs Windows 11 ARM via Emulation, Thanks to EU Rules

Tuesday April 22, 2025 5:01 am PDT by
A developer has demonstrated Windows 11 ARM running on an M2 iPad Air using emulation, which has become much easier since the EU's Digital Markets Act (DMA) regulations came into effect. As spotted by Windows Latest, NTDev shared an instance of the emulation on social media and posted a video on YouTube (embedded below) demonstrating it in action. The achievement relies on new EU regulatory...
iphone 16 pro models 1

17 Reasons to Wait for the iPhone 17

Thursday April 17, 2025 4:12 am PDT by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models simultaneously, which is why we often get rumored features months ahead of launch. The iPhone 17 series is no different, and we already have a good idea of what to expect from Apple's 2025 smartphone lineup. If you skipped the iPhone...
iOS 18

iOS 18.5 Includes Only a Few Changes So Far

Monday April 21, 2025 11:00 am PDT by
Apple seeded the third beta of iOS 18.5 to developers today, and so far the software update includes only a few minor changes. The changes are in the Mail and Settings apps. In the Mail app, you can now easily turn off contact photos directly within the app, by tapping on the circle with three dots in the top-right corner. In the Settings app, AppleCare+ coverage information is more...
iPhone 17 Pro Blue Feature Tighter Crop

iPhone 17 Pro Launching Later This Year With These 13 New Features

Wednesday April 23, 2025 8:31 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 April 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 ...