Xcode quits unexpectedly every time I open my project

Question

After opening xcode, when I open my current project, it's showing a warning like "xcode quit unexpectedly" with 3 options: "Ignore", "Report" and "Reopen". When I click "Reopen", it will open the xcode window and again automatically it will close and show the same warning.

Why this is happening? If I open any other projects, then it opens with no issues; the issue is with my current app.

versions:

xcode is 4.3.1
mac OS X version is 10.7.3

Please tell me why it's happening like this.

rewove all user data from the project and try again. also, provide some error message - otherwise no one will be able to help you. — jimpic, Nov 28 '12 at 07:36
Try deleting DerivedData folder of your Current App. It should be located somewhere in ~/Library/Developer/Xcode/DerivedData/CurrentApp-{some generated string}/ — Eimantas, Nov 28 '12 at 07:37
I tried this but no result ..Same problem...shal i post problem report?? — suvarna, Nov 28 '12 at 08:01

rob mayoff · Accepted Answer · 2019-11-14T17:30:17.970

151

Xcode stores some user state information inside the Xcode project “file”, which is really a folder. That state information might have become corrupted. You can normally throw away everything inside your .xcodeproj folder except the project.pbxproj file. This might fix your problem.

Open up the folder containing your .xcodeproj file. Right-click or control-click the .xcodeproj file and choose “Show Package Contents”. Then throw away everything except the project.pbxproj file.

cleaning an xcodeproj package

If you know what an Xcode workspace is, and you're actually making use of it, you might not have a project.xcworkspace file to throw away, or you might not want to throw it away. But if you don't know what an Xcode workspace is, then you're not using it so you can just throw away project.xcworkspace. Xcode will recreate it automatically.

edited Nov 14 '19 at 17:30

answered Nov 28 '12 at 08:10

rob mayoff

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You are the man ! I personaly went on `biogaran.xcworkspace` and removed the folder `xcuserdata` – Pierre de LESPINAY Apr 24 '13 at 12:25
Nice graphic but this didn't fix it for me-!! My issue was xcodes built in version control - solved by http://stackoverflow.com/a/18914491/1061800 – Ben Feb 25 '14 at 11:05
Its not solving my problem yet. i am able to open xcode 8 but in xcode 7 still getting same alert again and again. – Gaurav Pandey Sep 25 '16 at 06:41
After doing this I had recreate my build schemes in order to build and run. – eskimwier Dec 08 '16 at 22:03
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I was using a workspace - did the same thing on my .workspace file and it worked :) – Mohit Singh Dec 17 '16 at 06:57
Deleting just **UserInterfaceState.xcuserstate** file fixed the issue – iAkshay Nov 24 '17 at 05:46
It might also help to download a fresh git clone of the project - if the xcuserdata etc are ignored, you should get a clean version. helped here. – brainray Jun 28 '22 at 08:38

score 19 · Answer 2 · answered Feb 08 '17 at 07:52

19

Deleting Derived Data worked for me. Just open another project or open xcode without opening your corrupted project. Than open preferences and go locations tab at the end. Click gray circle with arrow (where all your projects derived data are saved.)

Delete your corrupted project's derived data in there and you are good to go.

answered Feb 08 '17 at 07:52

ysnzlcn

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worked for me as well, thanks! Deleting files in *.xcodeproj directory did not work for me. – Patrick Salami Feb 12 '17 at 23:47

score 7 · Answer 3 · answered Oct 23 '17 at 08:07

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you can run XcodeSystemResources.pkg.

/Applications/Xcode.app/Contents/Resources/Packages/XcodeSystemResources.pkg.

I hope help to you

answered Oct 23 '17 at 08:07

Tolga İskender

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score 6 · Answer 4 · answered Dec 11 '19 at 09:04

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go to [ProjectName].xcworkspace file.Right click. Show package contents. Delete xcuserdata folder. After deleting, run the project it will work for sure.

answered Dec 11 '19 at 09:04

Amit Thakur

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score 5 · Answer 5 · edited May 23 '17 at 12:34

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I would recommend opening the terminal and copying in the following:

rm -rf ~/Library/Developer/Xcode/DerivedData

Note: credit to zirinisp for providing the answer that worked for me

edited May 23 '17 at 12:34

Community

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answered May 12 '17 at 10:35

sam_smith

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score 3 · Answer 6 · answered Feb 06 '13 at 10:45

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Just delete the Xcode saved state. It worked for me.

answered Feb 06 '13 at 10:45

BonD

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score 2 · Answer 7 · answered Jun 23 '17 at 06:14

I am using CocoaPod (XCode 8.2), these steps solved my issue:

Go to project folder
Open package contents of .xcworkspace
Delete xcuserdata in package contents
Remove it from Trash (optional)
Go back and open .xcworkspace (XCode will prompt to reopen, but don't do this)
Continue with your project :)

score 2 · Answer 8 · answered Nov 21 '19 at 10:32

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Open project folder show package contents from .xcworkspace or .xcodeproj You will see 2 folders xcshareddata and xcuserdata Please remove xcuserdata folder Try to open application

answered Nov 21 '19 at 10:32

Nitin

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score 1 · Answer 9 · answered Mar 30 '17 at 12:37

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If you're using CocoaPods, just follow Rob's instruction but on the .xcworkspace file instead and do not delete the .xcworkspacedata file.

answered Mar 30 '17 at 12:37

Paula Hasstenteufel

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You're right but they can make clean cocoapods installation if it is necessary. – MGY Oct 04 '17 at 12:31

score 1 · Answer 10 · answered Mar 13 '20 at 09:24

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My Solved that worked

Go to project folder
open package contents of .xcodeproject
Delete xcuserdata in package contents
Go back and delete .xcworkspace

/// Please dont delete .pbxproj

Try to open your project and work :)

answered Mar 13 '20 at 09:24

indrit saveta

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score 1 · Answer 11 · answered Mar 11 '21 at 11:05

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It's 2021, still having this problem. Reboot doesn't help, OS update doesn't help.

Then I updated everything in the App Store (iMovie, Numbers, Pages, Keynote) and Xcode is now working.

Please don't ask why.

answered Mar 11 '21 at 11:05

Aitch

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score 0 · Answer 12 · answered Apr 02 '17 at 09:30

I am using CocoaPods, and followed Rob's Instruction on the .xcworkspace file as indicated above by Allecto. After I "showed Package Contents" on the .xcworkspace file, the only thing I did was to rename the xcuserdata folder to xcuserdataCrashApril2. I was then able to open the project (workspace) with no problems. The only difference is xcode did not save the state of which .swift source code files were previously opened (which is not a big issue for me).

I suppose I can delete the xcuserdataCrashApril2 file, but I am keeping it out there as a reminder of what to do the next time this happens.

score 0 · Answer 13 · answered Sep 25 '17 at 18:39

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I am using Xcode 8.3

Go to ~/Library/Developer/Xcode

Delete Derived Data folder and it works for me.

May help you.

answered Sep 25 '17 at 18:39

Ashu

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score 0 · Answer 14 · answered Nov 04 '17 at 13:14

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All the advices from above didn't help me so I added the pod file via pod init & pod install and successfully opened newly created .xcworkspace. Hope it helps somebody

answered Nov 04 '17 at 13:14

veaceslav.makarov

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score 0 · Answer 15 · answered Nov 28 '19 at 13:25

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I also have this bug with XCode 10.3. In my case i launch app -> it displays alert "Quits unexpectedly" and it doesn't matter what i choose: to reopen or not - it crashes again.

Solution: Reboot Mac :))

answered Nov 28 '19 at 13:25

Nikita Haiko

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score 0 · Answer 16 · answered Feb 18 '20 at 05:32

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Delete Project.xcworkspace first.
Open Terminal
Go to application folder
Run command pod install
Delete Derived Data
Open Project.xcworkspace

It works for me.

answered Feb 18 '20 at 05:32

Yogendra Singh

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Xcode quits unexpectedly every time I open my project

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