I'm running in a very very very weird error. I have a large asset catalog, consisting of about 2700 assets for 1.19GB of size.
I can successfully build and run my project with both release and debug scheme, when a real device or simulator is selected. However, whenever I select Any iOS device (arm64), about 80ish seconds in the build process, the building fails with the following output:
CoreUI: Error: unable to add asset to store
*** Terminating app due to uncaught exception 'IBPlatformToolFailureException', reason: 'The tool closed the connection (AssetCatalogSimulatorAgent)
What I tried and failed:
- Cleaning DerivedData and restarting PC
- Building the same project on three different devices, each with a different version of XCode. All failed.
- running
sudo killall -9 com.apple.CoreSimulator.CoreSimulatorService - Scanning for duplicate image files, found none.
- Scanning for duplicate .imageset folders in different folders, found none.
- Scanning for images that declared a different format than theirs, eg .webp renamed as .png, and found none.
- Creating an empty Hello World project, and just adding my asset catalog. Build fails for Any iOS device, succeeds for simulator or physical device.
- Uninstalling and reinstalling XCode command line tools.
- Manually compiling via actools.
- Changed "Embed Assets Pack in Product Bundle" from No to Yes.
- I don't have any .svg file in my assets.
What I tried and failed but gives more insight:
Now the only thing that I was able to come up with was deleting folders to narrow down where the problem was. So I found that there is a 700MB folder called T, containing T1, T2, ..., T6. Eventually managed to narrow down even more to T3, T4, T6.
I created a distinct .xcassets catalog for each subfolder and tried to compile individually with actools, along with assets.xcassets (the main one). Here's the thing:
- T3.xcassets + assets.xcassets compiles
- T4.xcassets + assets.xcassets compiles
- T6.xcassets + assets.xcassets compiles
- T3.xcassets + T4.xcassets + assets.xcassets compiles.
- T3.xcassets + T6.xcassets + assets.xcassets compiles.
- T4.xcassets + T6.xcassets + assets.xcassets compiles.
- T3.xcassets + T4.xcassets + T6.xcassets + assets.xcassets crashes with CoreUI: Error: unable to add asset to store.
I've been stuck for days now and can't deploy my finished app I worked on for the last three years because of this.