I can't install Xcode 4. I have some files that I need to open in Xcode 4. However, when I try to install it, it says "Xcode Install Assistant cannot be installed on this disk. The version of OS X is too new." How can I make it think I'm on Lion or Mountain Lion?
Here is a picture:
Download it in the App Store - it's the newest version and looks like the disc you have doesn't support Mavericks.
I feel tired of these preposterous answers. I think that if you want to stick to an older version of something, you should be able to. Also, I don't think software like XCode 4 are that old anyway.
But, to the point: I think XCode 4.6.3 is compatible with Mavericks. I am not sure about previous 4.6.X, but I think none of them work.
Any versions prior would require a previous operating system. I think you could try using pacifist to install the version you want, but I haven't found any guides.
If your problem is with project compatibility, in XCode 5 there is an option to save the project in a way it is compatible with XCode 4.6, and I suppose 4.6 offers a similar option to save in a version prior. Of course, you may need to adapt the code of the projects accordingly. Usually I try to stick with the Snow-Leopard-compatible code, because it compiles fine in all XCode 4.X and 5.X versions.
You can download any of these from the developer website.
I would try partitioning the disk and installing an older Mac OS X. I work with Snow Leopard and Mavericks in the same Mac. I usually do interface tasks in SL and the rest on Mavericks. The other advantage is that I have both XCode 4.2 and 3.2.6 in the same machine, so I can manage some backwards compatibility. =D
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I recently upgraded from Lion to Mountain Lion and my Xcode4.2 stopped working. It complains about it's not for Mountain Lion. I also installed Xcode4.4. But I have an important project that works under Xcode4.2 but had issues with Xcode4.4.
Is there a way to make Xcode4.2 work under Mountain Lion???
I didn't find a version for Mountain Lion on Apple Developer website...
The reason you can't find Xcode 4.2 for Mountain Lion is that there is no such version. In the past, people have used tricks to get older versions of Xcode to run on newer OSs—but, much like the tricks people have used to run older SDKs in newer versions of Xcode, etc., Apple has intentionally or accidentally broken every one of them.
It really isn't worth fighting them on this. If you can get your code working in 4.4, do so. If you can't, keep a Lion machine (or virtual machine) around to build it with.
Xcode 4.2 isn't supported on Mountain Lion. In fact, it's pretty old at this point, and it's not getting any younger. You're going to have to update your project to work with newer versions of Xcode at some point anyway -- why not take the time to do it now? Xcode 4.4 will let you deploy to systems going all the way back to 10.4.
I have just bought a macbook air 11" with Lion 10.7. I installed xcode 3.2.5 on it. But its not working. Xcode is installed, consuming much space but I cannot see it in applications. Somewhere I heard that xcode 3 will not work on Lion 10.7, only xcode 4 is compatible on this os. Is it really true? I tried removing xcode 3 but efforts go worthless. What should I do to uninstall it?
For Xcode, you want to use scripts provided with Xcode to remove it completely. Open a terminal window and invoke /Developer/Library/uninstall-devtools. Alternatively, you can just drag the Developer folder to the trash, but I don't think that removes everything that gets installed by the installer.
And no, Xcode3.2 won't work (entirely right) under Lion. You need Xcode4, v4.2 being the most recent with the iOS5 SDK. And if you want to submit anything to Apple, you'll need 4.2 (i.e. the latest released tools) anyway, at this point.
I would use this utility. It's always worked better than the traditional way to "unistall" applications form OSX
http://appzapper.com/
The reviews have always been good for this app.
I've recently upgraded to OS X Lion and Xcode 4.2, which however seems to cause a lot of problems with Ruby.
What I need to do is install 4.1 instead of the currently 4.2, but I can't seem to find it anywhere. App Store and the official download page already offers only 4.2.
Is there any way I can get back to 4.1?
you can find old versions of xcode here. Make sure to install it in a different directory.
https://developer.apple.com/downloads/index.action
You find older versions of Xcode on previous install media (such as Snow Leopard came with a copy of Xcode 3), although I am not sure you will be able to install it in Lion.
I'm planning to buy Mac OS Lion, but I would like to know some informations.
- Are Snow Leopard's apps compatible with Lion?
- Are apps compiled with Xcode for Lion compatible with Snow Leopard? What if these app uses popovers/fullscreen which are features of Lion?
xCode requires a full download (the full 5*ish GB) and if you are a Java guy you will have to re download Java as it is not included (this was my experience when opening eclipse for the first time in Lion).
Some of Snow leopards apps are compatible, not all (ppc apps will not work). It is probably best to check with the software vendor first.
Another thing your Library folder disappears on an upgrade among some others where Lion is trying to 'Protect' its users. To get round this simply enter the command into terminal. (replace username with your username and foldertoreveal with the hidden foldername)
chflags nohidden /Users/Username/FolderToReveal
The upgrade process other wise has been fine. For reference I am an Obj C /C++ /C and Java developer. Hope this helps
Also will link you to this post about Developing Java on Lion:
Stack Overflow post on Java in Lion
A very good list of compatible applications is available at RoaringApps. I highly recommend checking for your favorite editors/IDEs/etc there.
Of note:
TextMate: "Works fine," but there are some issues
BBEdit: "Works fine"
iTerm2: "Works fine" (minor interface bugs)
And of course, Apple's tools require an upgrade to XCode 4.1.
As far as developing with the new APIs in Lion, you can explicitly target a specific version of OS X for compatibility. When building for 10.6, those new APIs will not be exposed during compilation and you will get warnings about unrecognized selectors if you try to use them.
So far what I've noticed :
- make sure you install XCode 4.1 (not the same as 4.0, it's a free separate download), which fixes the Python includes mess
- go to terminal and type "java", this will trigger the download of the Java runtime
But I chose to avoid the burden of fixing all libs by going with a clean install of Lion (from a USB key)
cvs stopped working for me, but downloading Xcode seemed like an unnecessarily heavyweight fix. Adding /Developer/usr/bin to my PATH fixed it for me.
itunes asked me to upgrade my iphone's OS to 3.1.3, so I complied naively.
then xcode told me that the latest iphone OS version it could support was 3.1.2. So I went to download a new version from https://developer.apple.com/iphone/index.action#downloads, xcode 3.2.2 with iphone SDK.
but when i went to install that, i was told I needed snow leopard 10.6.2 or later. so I'm just making sure that I am not misinterpreting anything when I say that, given that it is impossible to downgrade iphone OS versions without jailbreaking, I need to install a new version of the OS just so I can resume testing apps on my iphone?
given that it is impossible to
downgrade iphone OS versions without
jailbreaking
I'm not sure that's correct. I've done it before on ipods. If you go to ~/Library/iTunes, there's a few folders in there. Look through the folders for files with an "ipsw" file extension. These are the software upgrades. When you perform an upgrade, the upgrade file is saved here. So find the one you want to "downgrade" to. If you can't find it you may be able to google for it. In any case find the appropriate file. Then in iTunes if you option-click "Check for Update" it asks you to choose the file you want to use to perform the update instead of running the update check normally... so just select the ipsw file. That should "downgrade" you... I think. As I mentioned I did it a few years ago on an ipod.