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Editorial Team
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Asked: 2026-06-12T04:43:06+00:00

xcode 4.5 OSX 10.8 CoreLibrary(529mb) install error like this. Failed to install documentation for

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xcode 4.5 OSX 10.8 CoreLibrary(529mb) install error like this.

“Failed to install documentation for OS X 10.8 Core Library”
Installation path is /User/*/Library/Developer/Shared/Documentation/DocSets/com.apple.adc.documentation.AppleOSX10_8.Core…,points to a folder that does not look like a valid documentation set for updating

And simulator 6.0 lunching time is very slow(rather than simulator 5.0).

My mac os is “Mountain Lion”.

I already try reinstalling but not working.(use AppCleaner)

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1 Answer

  1. Editorial Team

    I found a previous unfinished download left files to be deleted.

    1. Exit Xcode.
    2. Go to ~/Library/Developer/Shared/Documentation/DocSets
    3. Remove the entire com.apple.adc.documentation.AppleOSX10_8.CoreReference.docset
    4. Open Xcode and restart the download and install process.
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