Don’t forget to include a sample app that demonstrates the problem. —Rob
> On Mar 26, 2021, at 12:02 PM, Gary L. Wade via Cocoa-dev > <cocoa-dev@lists.apple.com> wrote: > > Try surrounding the call with beginEditing and endEditing on the text > storage. If it still happens, submit a feedback to Apple with the full crash > log. > -- > Gary L. Wade > http://www.garywade.com/ > >> On Mar 26, 2021, at 4:11 AM, Mark Allan via Cocoa-dev >> <cocoa-dev@lists.apple.com> wrote: >> >> Hi folks, >> >> Some users are reporting a crash that I can't reproduce, and in an attempt >> to gain additional diagnostics from a user, I wrapped the affected line in a >> try/catch block. For two users it resolve the crash, but for a third, it's >> still crashing at the same point! >> >> The crash occurs when a user attempts to open the "About" window from my >> app's main menu item. I'm not using the standard about panel as there's a >> few additional items I need to display, one of which is an NSTextView which >> I populate with the contents of an RTF file from within the app bundle. >> >> I've symbolicated the crash log to find it's happening when populating that >> TextView. The line in question now reads as follows: >> >> @try { >> [self.aboutBox.creditsTextView readRTFDFromFile:[[NSBundle mainBundle] >> pathForResource:@"Credits" ofType:@"rtf"]]; >> } @catch (NSException *exception) { >> NSLog(@"Error loading the contents of the text file for the About Box. >> %@", exception); >> //Check we have a file at the expected path >> if([[NSFileManager defaultManager] fileExistsAtPath:[[NSBundle >> mainBundle] pathForResource:@"Credits" ofType:@"rtf"]]){ >> NSLog(@"Yes. Found the RTF credits file"); >> // check the attributes in case somehow there's no permission to >> read the file >> NSDictionary *fileAttributes =[[NSFileManager defaultManager] >> attributesOfItemAtPath:[[NSBundle mainBundle] pathForResource:@"Credits" >> ofType:@"rtf"] error:nil]; >> NSLog(@"RTF file has following attributes %@", fileAttributes); >> } >> else { >> NSLog(@"Nope, file not found"); >> } >> } >> >> This is the crash log from the newest build (with the try/catch around that >> line): >> >>> Performing @selector(showAboutBox:) from sender NSMenuItem 0x600000634540 >>> *** Terminating app due to uncaught exception 'NSInvalidArgumentException', >>> reason: '*** -[__NSArrayM insertObject:atIndex:]: object cannot be nil' >>> terminating with uncaught exception of type NSException >>> abort() called >>> >>> Application Specific Backtrace 1: >>> 0 CoreFoundation 0x00007fff206ea6af >>> __exceptionPreprocess + 242 >>> 1 libobjc.A.dylib 0x00007fff204223c9 >>> objc_exception_throw + 48 >>> 2 CoreFoundation 0x00007fff2079ea9a -[__NSCFString >>> characterAtIndex:].cold.1 + 0 >>> 3 CoreFoundation 0x00007fff2079c953 -[__NSArrayM >>> insertObject:atIndex:].cold.2 + 0 >>> 4 CoreFoundation 0x00007fff20610421 -[__NSArrayM >>> insertObject:atIndex:] + 1135 >>> 5 UIFoundation 0x00007fff23c223ab >>> __defaultTabStops_block_invoke + 161 >>> 6 libdispatch.dylib 0x00007fff203cd7c7 >>> _dispatch_client_callout + 8 >>> 7 libdispatch.dylib 0x00007fff203ce96b >>> _dispatch_once_callout + 20 >>> 8 UIFoundation 0x00007fff23c229d7 >>> -[NSMutableParagraphStyle setTabStops:] + 199 >>> 9 UIFoundation 0x00007fff23c3c697 -[NSRTFReader >>> defaultParagraphStyle] + 75 >>> 10 UIFoundation 0x00007fff23c3c5be -[NSRTFReader >>> _mutableParagraphStyle] + 112 >>> 11 UIFoundation 0x00007fff23c36113 controlClass + >>> 1757 >>> 12 UIFoundation 0x00007fff23c356b4 -[NSRTFReader >>> attributedString] + 76 >>> 13 UIFoundation 0x00007fff23c311a6 >>> _NSReadAttributedStringFromURLOrData + 3213 >>> 14 UIFoundation 0x00007fff23d46985 >>> -[NSAttributedString(NSAttributedStringUIFoundationAdditions) >>> initWithURL:options:documentAttributes:error:] + 228 >>> 15 AppKit 0x00007fff23677d9a -[NSTextView >>> readRTFDFromFile:] + 126 >>> 16 MyAppHere 0x0000000105fa18a7 MyAppHere+ >>> 227495 >>> 17 AppKit 0x00007fff230af7fd >>> -[NSApplication(NSResponder) sendAction:to:from:] + 283 >>> 18 AppKit 0x00007fff231b2611 -[NSMenuItem >>> _corePerformAction] + 413 >> >> >> Any ideas what's going on? Other than the file not being found, why else >> might the object at line 3 in the backtrace be nil...and more interestingly, >> why is the exception not being caught? >> >> Thanks >> Mark > > _______________________________________________ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/cocoa-dev/petrock%40mac.com > > This email sent to petr...@mac.com _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
