XCode 9 Interface Builder takes forever to open

Hi lagst3r, could you file us a radar with a sample storyboard and the diagnostics file generated from running "sudo spindump" during the document open? This will help us anaylze the issue better and track the cause. Thanks!

I am seeing the same problems with my storyboards in both Xcode 9 and Xcode 9.1. The problem doesnt happen on Xcode 8.3

Update: I refactored the dashboard to create 2 more dashboards and the main Tab controller storyboard. The tab controller dashboard opens fine. but not the other two. I have seen it open once and other times I see the inerfacebuilder spinning continuously. memory usage goes up. from 600mb to 3Gb and continues. CPU used will be around 95%.

Hi

I am facing similar issue, when i click on main.storyboard, it does not load the interface builder. I can only see the spinning icon.

Activity Monitor shows almost 8GB of memory being utilized. It started with 800MB.

I was able to open it till yesterday on Xcode 8. It is happening after i upgraded to XCode 9.

Let me know what actions to take.

I am using MacBook 12inch

Same for me. Using Xcode9 and Swift4.

Opening storyboard lasts 25 seconds.

Saving updates 10-15 seconds.

Thinking of dropping the interface builder completely and do everything in code :-(

I'm having the same problem. May main.storyboard worked fine in XCode 8, but it will not open in XCode 9 at all. It just shows the spinning activity indicator. I've left it for up to half an hour, and still no luck.

I have not been able to do any development work at all since installing XCode 9. I may have to look into deleting it and reverting to XCode 8, but I really would like to avoid this, as I want to target iOS 11 (the app is not released yet).

The problem persists in XCode 9.0.1, although at least my launch.storyboard will open, but main.storyboard will not. The main.storyboard has a lot of content. dozens of scenes and seques.

I was having the same problem with a spinner on my main.storyboard file. This is what fixed it for me.

I right clicked my storyboard and opened as source code and changed the device from retina5_9 to retina4_0.

so this line:

<device id="retina5_9" orientation="portrait">

became this:

<device id="retina4_0" orientation="portrait">

I too am having this issue, i am able to open a single storyboard and that one is a simple one for an iPhone in one size only.

If i try to open any of my other complicated storyboards the loading wheel just continues until i give up.

This is happening in both XCode 9 and Xcode 9.1 Beta.

I was unable to even archive new versions off as it was unable to locate the storyboard files in the derived data, i solved this by removing the derived data and restarting, this allowed me to Archive off some new versions but still did not solve the storyboard issue.

THANK YOU! This has lost me an afternoon of work. Why oh why can't apple make these things work properly!!!

This seems to have worked for me to. Prior to this change, any time I tried adding or editing a toolbar item, the storyboard editor crashed. Now it's working fine.

Does anyone know where this is documented and the exact meaning of this setting ? That was a very hard to find solution !

I've seen in SO anoter setting to 5_5

h ttps://stackoverflow.com/questions/36335335/xcode-7-3-constantly-building-in-idle/42138935