Could not read serialized diagnostics file: Invalid File: Invalid diagnostics signature

Question

I'm getting this weird warning. I'm not sure what could cause it. A .dia file extension supposedly indicates a core digraph graphics file. I did not add one and the app has almost no ui at all.

Could not read serialized diagnostics file: error("Invalid diagnostics signature")

Answer 1

It appears to be an internal issue, the following steps seem to reliably resolve it for me.

• Installing my uninstalled dependencies (ie: CocoaPods).
• Cleaning the build folder.
• Removing derived data.
• Restarting Xcode
• If that doesn't work restarting my computer makes this go away. 🤦

Answer 2

Here's the zsh script line I use (after navigating to the project's folder):
Note: Uses rm -rfs!

rm -rf ~/Library/Caches/CocoaPods; rm -rf Pods; rm -rf ~/Library/Developer/Xcode/DerivedData/*; pod install;