NSCocoaErrorDomain

2019-06-10 16:41:42.742732+0800 Safari[44375:923094] [SQLiteStore] Failed to acquire database store coordination lock at /Users/ftqa/Library/Safari/Favicon Cache/favicons.db-lock: [35: Resource temporarily unavailable]2019-06-10 16:41:42.821446+0800 Safari[44375:923094] [SQLiteStore] Failed to acquire exclusive access to database at file:///Users/ftqa/Library/Safari/Favicon%20Cache/favicons.db.2019-06-10 16:41:42.849217+0800 Safari[44375:923150] [SQLiteStore] Failed to acquire database store coordination lock at /Users/ftqa/Library/Caches/com.apple.Safari/TabSnapshots/Metadata.db-lock: [35: Resource temporarily unavailable]2019-06-10 16:41:42.850986+0800 Safari[44375:923150] [SQLiteStore] Failed to acquire exclusive access to database at file:///Users/ftqa/Library/Caches/com.apple.Safari/TabSnapshots/Metadata.db.2019-06-10 16:41:42.867615+0800 Safari[44375:923143] [SQLiteStore] Failed to acquire database store coordination lock at /Users/ftqa/Library/Safari/Favicon Cache/favicons.db-lock: [35: Resource tempor

I have a similar issue:Error Domain=PHPhotosErrorDomain Code=4302 PHPhotosErrorInvalidState UserInfo={NSLocalizedDescription=PHPhotosErrorInvalidState, currentState=error, NSUnderlyingError=0x600001b16e20 {Error Domain=com.apple.photos.error Code=43002 (null) UserInfo={currentState=error, NSUnderlyingError=0x600001b16d90 {Error Domain=NSCocoaErrorDomain Code=4097 connection to service on pid 1476 named com.apple.Photos.Migration UserInfo={NSDebugDescription=connection to service on pid 1476 named com.apple.Photos.Migration}}}}}Have no idea how to fix.

Even using the Document Based App template with Xcode 11 and building and running it on the simulator without changing anything all I get is a blank white screen (beta 2 of Xcode and iOS 13) - no document picker. I do have a first gen iPad Pro I put beta 1 and 2 on and on it, I do get the document picker and can open a file. On the iPad, the opened document window appears centered covering about 1/3 the width of the screen rather than covering the entire screen.I've got other issues with my actual app and trying to open a custom document type but I'll start a new thread for that (https://forums.developer.apple.com/message/366848).These errors show up in the console when trying it in the simulator (and I just get the blank white screen):2019-06-20 16:51:33.892103-0400 DocumentBasedApp[21412:8135268] [general] CFLocaleCopyCurrent() failed to look up current locale via 'AppleLocale' and 'AppleLanguages' in user preferences; falling back to locale identifier 'en_US' as the default. Consider checking Console for s

I now get this as well on start, then Photos quits:Error Domain=PHPhotosErrorDomain Code=5103 PHPhotosErrorBookmarkResolutionFailed UserInfo={NSURL=file:///Users/xxx/Pictures/Photos%20Library.photoslibrary/, NSLocalizedDescription=PHPhotosErrorBookmarkResolutionFailed, NSUnderlyingError=0x600002832dc0 {Error Domain=com.apple.photos.error Code=41014 (null) UserInfo={NSURL=file:///Users/xxx/Pictures/Photos%20Library.photoslibrary/}}}- Repairing the database doesn't work- mtime's suggestion above doesn't work as Photos only appears briefly in the list of storage options and then vanishesThe console shows errors like:photolibraryd: No SSB on file for <private>photolibraryd: Error creating bookmark data for URL <private> : Error Domain=NSCocoaErrorDomain Code=256 UserInfo={NSDebugDescription=<private>}Photos:Failed to open photo library <private>, Error Domain=com.apple.photos.error Code=41014 UserInfo={NSURL=<private>}Photos:XPC connection error to assetsd <private> :

I get the same error message on my macbook for my libraryError Domain=PHPhotosErrorDomain Code=4302 PHPhotosErrorInvalidState UserInfo={NSLocalizedDescription=PHPhotosErrorInvalidState, currentState=error, NSUnderlyingError=0x600001b2d4a0 {Error Domain=com.apple.photos.error Code=43002 (null) UserInfo={currentState=error, NSUnderlyingError=0x600001b2d530 {Error Domain=NSCocoaErrorDomain Code=4097 connection to service on pid 537 named com.apple.Photos.Migration UserInfo={NSDebugDescription=connection to service on pid 537 named com.apple.Photos.Migration}}}}}And I'm completely unable to open my photo library at the moment

Hello bweinsteinThank you for your answer. I have tested the posted code and some other extension on macOS Catalina beta with regular Safari and Safari Technology Preview. It seems to work fine on either as I haven't been able to reproduce the bug.I've also done some testing on macOS 10.14 with Safari Technology Preview, but it seems to function rather wierdly with it. I don't think the same issue happens, but some calls to API methods that use completion handlers don't seem work.I'm not sure how related to the original issue this is, but I do have another question. On all testing I've done, including on macOS Catalina, from time to time I get this error in the XCode console: Error connecting back to host app: NSCocoaErrorDomain, code: 4099 and much more rarely the same error but with code 4097. Is this message related to the original problem? What causes it?Thank you for your time.