Preview Breaking after code change

UI Frameworks SwiftUI
mahendrickson OP
Created Jan ’24
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Hello! I have been experiencing an issue where if I make a change to a file then preview breaks and I must rebuild the project to fix preview. I cant attach the diagnostic report unfortunately as its too big even after i compressed it. How should I proceed?

Replies  1
Boosts  0
Views  383
Participants  2
Developer Tools Engineer OP
Apple
Jan ’24

Hi,

Sorry to hear you are having problems getting previews working. The best next step will be to file a feedback with diagnostics so we can take a look.

Steps to generate helpful diagnostics:

  1. Download and install the logging profile on all devices involved. Instructions and profiles are available here: https://developer.apple.com/bug-reporting/profiles-and-logs/?name=swift
  2. Reproduce the issue
  3. Click the "Diagnostics" button in the error banner in Previews' Canvas area (or if the banner is missing you can use the menu: Editor > Canvas > Diagnostics)
  4. In the sheet that appears, click "Generate Report" in the bottom left of the sheet
  5. Attach (or make from the folder) the resulting zip file to the bug (will be named something like previews-diagnostics-0123456789.zip)
  6. Generate the sysdiagnose(s) and attach those too
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Preview Breaking after code change
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