XCODE Preview: XOJITError: Could not create code file directory for session: Permission denied

Developer Tools & Services Xcode
jsin OP
Created
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I keep running into the following issue when trying to run preview for my application in Xcode.

FailedToLaunchAppError: Failed to launch app.a

/Users/me/Library/Developer/Xcode/DerivedData/a-aloudjuytoewlldqjfxshbjydjeh/Build/Products/Debug/a.app

==================================

|  [Remote] JITError
|  
|  ==================================
|  
|  |  [Remote] XOJITError
|  |  
|  |  XOJITError: Could not create code file directory for session: Permission denied`
Answered by jsin in 832591022

I found the solution to my problem. I went to signing and capabilities and removed all capabilities. I went back to the preview and it was working fine again. Im not sure what setting I changed to break the preview in the first place. I've looked back at my older version and I'm not seeing anything strange but it is working again.

Hope this helps x

Replies  3
Boosts 0
Views  475
Participants  2
Developer Tools Engineer OP
Apple

Hi,

Sorry to hear you are having problems getting previews working. We believe you are hitting a known issue related to previewing on a machine that has multiple user accounts.

Either way, to help us confirm we'd love it if you could grab diagnostics:

We will need the diagnostics Xcode Previews generates in order to make sure we understand the error the previews system is encountering.

Install the logging profile using instructions available here: https://developer.apple.com/bug-reporting/profiles-and-logs/?name=swift On your mac running Xcode, and on your physical preview device (if you are using one).

Install the logging profile using the following instructions on your mac running Xcode; and if you are using one, your physical preview device (iOS or visionOS): https://developer.apple.com/bug-reporting/profiles-and-logs/?name=swift

Then when you reproduce the problem in Xcode:

  1. Either (a) an error banner will appear, click the "Diagnostics" button in that banner; or (b) if you're not seeing an error but you still want to provide diagnostics you can get the same diagnostics window by going under the Editor menu in the menu bar, then selecting the Canvas submenu, then selecting "Diagnostics".
  2. In the sheet that appears, click "Generate Report" in the bottom left of the sheet
  3. Attach (or make from the folder) the resulting zip file to the bug (will be named something like previews-diagnostics-0123456789.zip)
  4. Generate a sysdiagnose on your mac and any on-device preview devices, and attach those too
jsin OP

I have run the diagnostics, generated the report and compressed it into a zip. Im now trying to attach the report into a comment like am I currently typing in but I can't attach the zip as it is greyed out. Is this the correct place to upload the report or is their a different location to upload it?
jsin OP
Accepted Answer

I found the solution to my problem. I went to signing and capabilities and removed all capabilities. I went back to the preview and it was working fine again. Im not sure what setting I changed to break the preview in the first place. I've looked back at my older version and I'm not seeing anything strange but it is working again.

Hope this helps x