Open Radar

 
Summary:
Documentation download fails with MAS Version 7.2 (7C68)

Steps to Reproduce:
Open xcode
open preferences
click downloads
click the download link next to any of the documentation sets (under the simulator download section)

Expected Results:
Download the docs

Actual Results:

Could not download and install iOS 9.2 Documentation. Don't know how to install package with extension  from file:///Users/mike/Library/Caches/com.apple.dt.Xcode/Downloads/com.apple.adc.documentation.iOS-92.3.. Downloaded from {
    dependencies =     (
    );
    fileSize = 1071665369;
    identifier = "com.apple.adc.documentation.iOS";
    name = "iOS 9.2 Documentation";
    source = "https://developer.apple.com/services-account/download?path=/Documentation/Xcode_7.2_beta_2_DocSets/03143046A.dmg";
    userInfo =     {
        ActivationPredicate = "7.2.0 >= '7.2'";
        Category = Documentation;
        IconType = IDEDownloadablesTypeDocSet;
        InstallPrefix = "/Users/mike/Library/Developer/Shared/Documentation/DocSets";
        InstalledIfAllReceiptsArePresentOrNewer =         {
            "com.apple.pkg.7.0.iOSDocset" = "10.9.0.0.1.1446334486";
        };
        RequiresADCAuthentication = 1;
        Summary = "My description of content";
    };
    version = "92.3";
}.

Regression:
Did not occur on 7.1 MAS version of Xcode

Notes:

The download link in the error message can be used to download the installer, but that’s wonky as it installs the docs into / and not where Xcode wants them