Open Radar

 
Summary:
I've been noticing this for months and finally dug into it more deeply. In a nutshell:

1. Every time I launch Xcode with my phone attached, it tries to install WatchOS 3.1 symbols.
2. It downloads a fresh copy to a temporary folder.
3. It mounts the downloaded package in a temporary mountpoint.
4. It fails to copy the resulting contents into ~/Library/Developer/Xcode/watchOS DeviceSupport/Watch1,2 3.1 (14S471)/Symbols/
5. It waits until next time I launch the app and tries, fails again.

This bug has cost me massive bandwidth overruns because the last thing I've expected has been 200MB downloads every single time I launch Xcode with my phone attached :(

Trying to get to the bottom of it, I have this to offer: I discovered the DVTDownloadableLeaveTemporaryFiles user default, which allowed me to repeatedly try the install process without re-downloading the 200MB file each time. I also discovered the DVTDownloadableLogLevel which yields this when the installation fails. It seems like some kind of authentication/sandbox issue, but I don't know what might be atypical about my setup.

I'm mostly testing on Xcode 8.2 betas but I also reproduce this on 8.1 GM: 

2016-12-07 22:53:43.055 Xcode[45418:2032192]  DVTDownloadable: Will install pkgs (
    "file:///private/var/folders/c6/rrr71bmj46797fn0qmhr11z80000gn/T/attached-image-3b1fe8392683d721919f64d80f8482dc3ff31182/Watch1,1_Watch1,2/Watch1,1_Watch1,2.pkg"
) from {
    dependencies =     (
    );
    fileSize = 0;
    identifier = "Xcode.Symbols.Watch1,2.14S471";
    name = "Symbols for watchOS 3.1 (14S471)";
    source = "http:/adcdownload.apple.com/Developer_Tools/watchOS_14S471/Watch1_2_14S471.dmg";
    userInfo =     {
        InstallPrefix = "/Volumes/Data/daniel/Library/Developer/Xcode/watchOS DeviceSupport/Watch1,2 3.1 (14S471)/Symbols";
        InstalledIfAllPathsArePresent =         (
            "/Volumes/Data/daniel/Library/Developer/Xcode/watchOS DeviceSupport/Watch1,2 3.1 (14S471)/Symbols"
        );
        RequiresADCAuthentication = 1;
    };
    version = "3.1";
}
2016-12-07 22:53:43.056 Xcode[45418:2032126]  DVTDownloadable: Requiring trust level 500
2016-12-07 22:53:43.476 Xcode[45418:2029807] [MT] DVTDownloadable: [Proxied device symbols coordinator] Download error Error Domain=PKInstallErrorDomain Code=100 "Could not download and install Symbols for watchOS 3.1 (14S471). Authorization is required to install the packages." UserInfo={NSLocalizedDescription=Could not download and install Symbols for watchOS 3.1 (14S471). Authorization is required to install the packages., NSUnderlyingError=0x7ff48d1bb4b0 {Error Domain=NSCocoaErrorDomain Code=260 "The file “12011D4B-F089-4174-9C2C-9206A324E377.sandbox” couldn’t be opened because there is no such file." UserInfo={NSFilePath=/Volumes/Data/.PKInstallSandboxManager/12011D4B-F089-4174-9C2C-9206A324E377.sandbox, NSUnderlyingError=0x7ff47330a760 {Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory"}}}}
2016-12-07 22:53:43.476 Xcode[45418:2029807] [MT] DVTDownloadable: [Proxied device symbols coordinator] Unable to download symbols Error Domain=PKInstallErrorDomain Code=100 "Could not download and install Symbols for watchOS 3.1 (14S471). Authorization is required to install the packages." UserInfo={NSLocalizedDescription=Could not download and install Symbols for watchOS 3.1 (14S471). Authorization is required to install the packages., NSUnderlyingError=0x7ff48d1bb4b0 {Error Domain=NSCocoaErrorDomain Code=260 "The file “12011D4B-F089-4174-9C2C-9206A324E377.sandbox” couldn’t be opened because there is no such file." UserInfo={NSFilePath=/Volumes/Data/.PKInstallSandboxManager/12011D4B-F089-4174-9C2C-9206A324E377.sandbox, NSUnderlyingError=0x7ff47330a760 {Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory"}}}}

Steps to Reproduce:


Expected Results:


Actual Results:


Version:
10.12.2 (16C60b
Version 8.2 beta (8C30a) 

Notes:


Configuration:


Attachments: