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xcode 3.2.6 installation failed?

I'm on OS 10.6.8 on a macbook air and trying to install the xcode 3.2.6 that i downloaded from apple. I have plenty of free disk space. When I run the installer I get the message: The Installation Failed. An unknown installation error has occured. I've tried installing from a new admin user. I'm not sure where to look or how to solve this problem. Any ideas?


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MacBook Air, Mac OS X (10.6.8), 1.4 GHz Intel Core 2 Duo / 2 GB

Posted on Mar 24, 2012 8:04 PM

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37 replies

Mar 24, 2012 9:09 PM in response to K T

I'm on a macbook air with 120GB, so 50GB seems plenty. xcode install takes 10GB


nothing in system profiler, but i checked this log in the terminal

open /var/log/install.log

and found this ... but I'm not sure what to make of it?



Mar 24 20:16:26 Jay-Palmers-MacBook-Air-2 Installer[3027]: Xcode and iOS SDK Installation Log

Mar 24 20:16:26 Jay-Palmers-MacBook-Air-2 Installer[3027]: Opened from: /Volumes/Xcode and iOS SDK/Xcode and iOS SDK.mpkg

Mar 24 20:16:40 Jay-Palmers-MacBook-Air-2 Installer[3027]: IFJS: *** exception: TypeError: 'null' is not an object (evaluating 'my.target.systemVersion')

Mar 24 20:16:40: --- last message repeated 1 time ---

Mar 24 20:16:40 Jay-Palmers-MacBook-Air-2 Installer[3027]: IFJS: *** exception: TypeError: 'null' is not an object (evaluating 'my.target.mountpoint')

Mar 24 20:16:40 Jay-Palmers-MacBook-Air-2 Installer[3027]: IFJS: *** exception: TypeError: 'null' is not an object (evaluating 'my.target.systemVersion')

Mar 24 20:16:40: --- last message repeated 1 time ---

Mar 24 20:16:40 Jay-Palmers-MacBook-Air-2 Installer[3027]: IFJS: *** exception: TypeError: 'null' is not an object (evaluating 'my.target.mountpoint')

Mar 24 20:16:40 Jay-Palmers-MacBook-Air-2 Installer[3027]: IFJS: *** exception: TypeError: 'null' is not an object (evaluating 'my.target.systemVersion')

Mar 24 20:16:40 Jay-Palmers-MacBook-Air-2 Installer[3027]: IFJS: *** exception: TypeError: 'null' is not an object (evaluating 'my.target.mountpoint')

Mar 24 20:16:40 Jay-Palmers-MacBook-Air-2 Installer[3027]: IFJS: *** exception: TypeError: 'null' is not an object (evaluating 'my.target.systemVersion')

Mar 24 20:16:40 Jay-Palmers-MacBook-Air-2 Installer[3027]: IFJS: *** exception: TypeError: 'null' is not an object (evaluating 'my.target.mountpoint')

Mar 24, 2012 9:44 PM in response to zoidness

also found this ...


Mar 24 21:12:34 Jay-Palmers-MacBook-Air-2 Installer[3367]: Failed install preflight: Error Domain=PKInstallErrorDomain Code=102 UserInfo=0x2f9fc0 "The package “iPhoneSDKTools.pkg” is untrusted." Underlying Error=(Error Domain=NSOSStatusErrorDomain Code=-2147409654 UserInfo=0x1a22ad50 "The operation couldn’t be completed. CSSMERR_TP_CERT_EXPIRED")


but have no idea how to resolve it?

Mar 25, 2012 4:32 PM in response to C60

I admit, installing xcode did not go smoothly and was one of my less than estatic experiences with apple products. And it took a lot of time to decipher the problem as the error logs where not very telling. I'm not sure what was wrong. But I did reinstall snow leopard os 10.6 on my Macbook Air, over the existing install (So all my settings, applications, and data was intact, just a clean install of os 10.6 and then I did system update to get to 10.6.8 and xcode installed no problem after that. I've worked in windows and this experience wasn't near the trouble I've had with windows.

Mar 30, 2012 3:30 PM in response to monkeylodge

It is frustrating to say the least!


Did you look at the logs? There could be some telling info in there.


Also, did you try installing xcode without ios SDK?


I would look at the logs. Then run the command from the terminal to uninstall xcode. then reinstall snow leopard. softer update snow leopard to latest update. I had to run update a couple times. then install xcode with the ios sdk unchecked.


good luck.

Mar 30, 2012 4:26 PM in response to zoidness

I've been trying to install xcode 3.2.6 on snow leopard off and on for a couple of days now. At each attempt I get the message: "The Installation Failed An unknown installation error...". The same message as in this thread.


I first tried downloading a new installation package and got the same results. I then ran the disk utility to check for errors and cleanup permissions - I got the same results. I then reloaded snow leopard and updated it to 10.6.8 - I got the same results.


I don't know where to go next. My macbook is one of the first with an Intel chip (Intel Core Duo) - my understanding is I can't upgrade to Lion so I seem to be stuck with xcode 3.2.6.


Any ideas??

xcode 3.2.6 installation failed?

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