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this is my first post on superuser though I hang out on Stackoverflow a fair amount.

Disclaimer, I'm an OSX noob. Anyway, this one has me stumped. When I go to the Apple Store and attempt to install Xcode version 4.5.2, I see this error:

Xcode can't be installed on MacOSX because Mac OS X version 10.7.4 or later is required.

However, when I open a shell and do a uname -a I see:

Darwin xxxx 10.8.0 Darwin Kernel Version 10.8.0: Tue Jun 7 16:33:36 PDT 2011; root:xnu-1504.15.3~1/RELEASE_I386 i386

Looks to me like that says I'm running 10.8.0. Just in case, I did manual check for software updates, there were a couple. I installed them, rebooted, still seeing the same thing.

EDIT - Forgot to mention, I also tried downloading Xcode and installing from the .dmg, but saw the exact same error.

What am I missing?


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up vote 2 down vote accepted

Mystery solved. uname reports the kernel version. When selecting "About This Mac" under the Apple menu it reports that I'm actually running OSX version 10.6.8. Sigh.

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