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“A Summary of the WWDC25 Group Lab”

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Xcode Build Timing summary not visible
HiI'm trying to use Xcode's Build With Timing Summary feature. It kicks off a build, and I can see the new build in the Build Reports navigator, but when I look through All Messages in the build results, there is Timing Summary information. It just says Build Success - <date> - 75 seconds, but there isn't a breakdown of the timing results.My target builds an iOS app with many extensions, so I can't post the whole logs here. But is there any reason why I can't find the timing results? I do have that older Xcode flag 'ShowBuildOperationDuration' which still works, but only gives the same overall build summary time, not a breakdown.
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3.9k
Apr ’20
Reply to XCode reverts CoreData's .xccurrentversion
I had been too swamped to be able to continue this conversation because of the highly prioritized work related to WWDC25, and after that I lost the track of this thread. Sorry for that. Thanks to another developer reaching out via DTS with the same issue, I am now picking up this thread, which hopefully is not too late. I'd like to confirm that I can now reproduce the issue. As folks have mentioned, the issue happens only in an Xcode project using folders, not groups. I've always used groups which helps me better organize files logically, and so had not seen the issue before. Xcode 26 Beta 6 doesn't fix the issue. Before the issue is fixed from the system side, the workarounds folks mentioned, like using groups instead or giving the new model version a name alphabetically ordered to the last, sound good to me. Best, —— Ziqiao Chen  Worldwide Developer Relations.
Aug ’25
From DarkSky to WeatherKit, summary and icon fields
Hello, I'm migrating my app to use WeatherKit from Dark Sky, and although most of the data fields is transformable, there are a few that are missing from WeatherKit's response; for example, summary and icon for daily/hourly/current weather data blocks. I'm curious, what workarounds have people used for these fields that can bridge that gap? My app relies on these values to render icons. Thank you!
5
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1.3k
Mar ’23
Summary Format for C++ templated union type
I'm working with the glm library (http://glm.g-truc.net/0.9.8/index.html) for vector math - unfortunately, the underlying data types have very unfriendly representations in the lldb debugger summary format view. For example, a simple array of vec2 data type (which is a typedef for glm::tvec2<float, glm::precision::highp>) gets the following view in the debugger:http://imgur.com/a/P8IczI was able to use the Edit Summary Format functionality to make a nice view for vec2 -- e.g., ({$VAR.x},{$VAR.y}) -- when the debugger recognizes it as a vec2 (e.g., in my code). But when the debugger sees it as glm::tvec2<float, glm::precision::highp> (e.g., inside library code) editing the summary format doesn't seem to work. Instead of a nice human readable summary, I get Summary UnavailableI edited the plist in /Library/Developer/Xcode/UserData/Debugger/CustomDataFormatters to see what happened:<SummaryFormatter formatString = ({$VAR.x},{$VAR.y}) type = glm::tvec2&a
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1.1k
Mar ’17
Installer Lab Notes
There is a way to get the OS installer into an installer packageBuild installer package which installs Install OS X.appComponents:Install 10.12.app (added to Scripts directory or installed somewhere on the filesystem.)postinstall scriptThe command line tool to call is startosinstallpostinstall script would call startosinstall and install Install 10.12.app using the startosinstall tool.Note: The startosinstall tool uses the same logic that the GUI app.Usage: startosinstall --applicationpath <install os x.app path> --volume <target volume path> Arguments --volume, a path to the target volume. --applicationpath, a path to copy of the OS installer application to start the install with. --license, prints the user license agreement only. --agreetolicense, agree to license the license you printed with --license. --rebootdelay, how long to delay the reboot at the end of preparing. This delay is in seconds and has a maximum of 300 (5 minutes). --pidtosignal, Specify a PID to which to send SIGUSR1 upon comp
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4.7k
Jun ’16
WWDC HomeKit Labs have no Topic
Trying to request a HomeKit lab, and there's no 'Topic' listed in the form - when submitting via the Developer app, it prevents me from submitting the request. I was able to do it via the web, but not via the app!
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2
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0
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1.1k
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Jun ’21
MSMessage Summary Text is not available
In the demo in the WWDC video, they set the summary text but the beta xcode doesn't seem to have it yet. Where can we submit this as a bug?
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1
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0
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448
Activity
Jun ’16
export log for Build With Timing Summary
When I use Build With Timing Summary in Xcode I can see elapsed times in the build log. When I export the log (or copy/paste a section), the times aren't included. Is there a way to include them so I can analyze the results?
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1
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0
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1.1k
Activity
Sep ’21
Xcode Build Timing summary not visible
HiI'm trying to use Xcode's Build With Timing Summary feature. It kicks off a build, and I can see the new build in the Build Reports navigator, but when I look through All Messages in the build results, there is Timing Summary information. It just says Build Success - <date> - 75 seconds, but there isn't a breakdown of the timing results.My target builds an iOS app with many extensions, so I can't post the whole logs here. But is there any reason why I can't find the timing results? I do have that older Xcode flag 'ShowBuildOperationDuration' which still works, but only gives the same overall build summary time, not a breakdown.
Replies
2
Boosts
0
Views
3.9k
Activity
Apr ’20
Reply to XCode reverts CoreData's .xccurrentversion
I had been too swamped to be able to continue this conversation because of the highly prioritized work related to WWDC25, and after that I lost the track of this thread. Sorry for that. Thanks to another developer reaching out via DTS with the same issue, I am now picking up this thread, which hopefully is not too late. I'd like to confirm that I can now reproduce the issue. As folks have mentioned, the issue happens only in an Xcode project using folders, not groups. I've always used groups which helps me better organize files logically, and so had not seen the issue before. Xcode 26 Beta 6 doesn't fix the issue. Before the issue is fixed from the system side, the workarounds folks mentioned, like using groups instead or giving the new model version a name alphabetically ordered to the last, sound good to me. Best, —— Ziqiao Chen  Worldwide Developer Relations.
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Aug ’25
Website adjustments for AI Reader Summary function
What do I need to do with my webpages to enable Safari AI summary functionality? Thanks, David
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0
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0
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534
Activity
Oct ’24
Reply to Determining which new features use AI/ML under the hood
They talk about this in the WWDC25 video, Meet the Foundation Models framework starting at 19:55 in the presentation.
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Jun ’25
wwdc 2016 what equipment is provided in the labs?
Whats the minimum in terms of a laptop I can get away with bringing to the wwdc 2016? I don't actually own any sort of apple devices. I just program on them at the company I work at. Do I have to go out and buy something? or are they provided in the labs?Thanksgc
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0
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158
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Apr ’16
Reply to Swift Assist
Xcode 16.3 and still no Swift Assist. WWDC25 is around the corner....
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Feb ’25
From DarkSky to WeatherKit, summary and icon fields
Hello, I'm migrating my app to use WeatherKit from Dark Sky, and although most of the data fields is transformable, there are a few that are missing from WeatherKit's response; for example, summary and icon for daily/hourly/current weather data blocks. I'm curious, what workarounds have people used for these fields that can bridge that gap? My app relies on these values to render icons. Thank you!
Replies
5
Boosts
0
Views
1.3k
Activity
Mar ’23
Summary Format for C++ templated union type
I'm working with the glm library (http://glm.g-truc.net/0.9.8/index.html) for vector math - unfortunately, the underlying data types have very unfriendly representations in the lldb debugger summary format view. For example, a simple array of vec2 data type (which is a typedef for glm::tvec2<float, glm::precision::highp>) gets the following view in the debugger:http://imgur.com/a/P8IczI was able to use the Edit Summary Format functionality to make a nice view for vec2 -- e.g., ({$VAR.x},{$VAR.y}) -- when the debugger recognizes it as a vec2 (e.g., in my code). But when the debugger sees it as glm::tvec2<float, glm::precision::highp> (e.g., inside library code) editing the summary format doesn't seem to work. Instead of a nice human readable summary, I get Summary UnavailableI edited the plist in /Library/Developer/Xcode/UserData/Debugger/CustomDataFormatters to see what happened:<SummaryFormatter formatString = ({$VAR.x},{$VAR.y}) type = glm::tvec2&a
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0
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0
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1.1k
Activity
Mar ’17
Publish different privacy summary in different countries
As per title, if I am using data differently in different countries can I upload different privacy summaries within the same app id?
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0
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967
Activity
Dec ’22
Answered questions from Device Management lab session
I asked a number of questions in a Device Management lab session. If interested, please see the attached Answered questions: Answered questions
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0
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553
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Jun ’24
Installer Lab Notes
There is a way to get the OS installer into an installer packageBuild installer package which installs Install OS X.appComponents:Install 10.12.app (added to Scripts directory or installed somewhere on the filesystem.)postinstall scriptThe command line tool to call is startosinstallpostinstall script would call startosinstall and install Install 10.12.app using the startosinstall tool.Note: The startosinstall tool uses the same logic that the GUI app.Usage: startosinstall --applicationpath <install os x.app path> --volume <target volume path> Arguments --volume, a path to the target volume. --applicationpath, a path to copy of the OS installer application to start the install with. --license, prints the user license agreement only. --agreetolicense, agree to license the license you printed with --license. --rebootdelay, how long to delay the reboot at the end of preparing. This delay is in seconds and has a maximum of 300 (5 minutes). --pidtosignal, Specify a PID to which to send SIGUSR1 upon comp
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0
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0
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4.7k
Activity
Jun ’16
Cannot request appointment in iMessage apps and stickers lab
Unlike other labs I’ve checked, requesting appointment for the iMessage apps and stickers labs, requires the Feedback ID field to be filled. Isn’t this a mistake?
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5
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0
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1.7k
Activity
Jun ’21