[IslandwoodNews] Unable to open any articles

[msft-Jeyaram]

Steps:

1. launch IslandwoodNews
2. open an article

Results:
Unable to open the article and application crashes.

This is failing on develop [and has propagated to CGD2D during the merge from Develop->CGD2D]

stack trace:

 	LIBOBJC2.DLL!objc_exception_throw(void * object) Line 134	C++
 	FOUNDATION.DLL!-[NSException raise](NSException * self, objc_selector * _cmd) Line 131	Objective-C++
>	FOUNDATION.DLL!+[NSException raise:format:](id * self, objc_selector * _cmd, NSString * name, NSString * format) Line 96	Objective-C++
 	FOUNDATION.DLL!-[NSCFArray objectAtIndex:](NSCFArray * self, objc_selector * _cmd, unsigned int index) Line 86	Objective-C++
 	UIKIT.DLL!-[_UIPageViewScrollView _populatePagesWithOffset:interactive:](_UIPageViewScrollView * self, objc_selector * _cmd, CGPoint * targetOffset, int interactive) Line 491	Objective-C++
 	UIKIT.DLL!-[_UIPageViewScrollView touchesBegan:withEvent:](_UIPageViewScrollView * self, objc_selector * _cmd, NSSet * touches, UIEvent * event) Line 208	Objective-C++
 	FOUNDATION.DLL!-[NSObject performSelector:withObject:withObject:](NSObject * self, objc_selector * _cmd, objc_selector * selector, id * obj1, id * obj2) Line 275	Objective-C++
 	UIKIT.DLL!-[UIView _processPointerEvent:forTouchPhase:](UIView * self, objc_selector * _cmd, WUXIPointerRoutedEventArgs * pointerEventArgs, UITouchPhase touchPhase) Line 609	Objective-C++
 	UIKIT.DLL!__41-[UIView _initPrivWithFrame:xamlElement:]_block_invoke(void * .block_descriptor, RTObject * sender, WUXIPointerRoutedEventArgs * e) Line 767	Objective-C++

[msft-Jeyaram]

Also the performance seems bad now.
Navigating to the next tab and displaying the listview content is noticeably slow.

[aballway]

Can you add a stack trace or more context? I'm getting an unrelated failure before this one.

[msft-Jeyaram]

 	LIBOBJC2.DLL!objc_exception_throw(void * object) Line 134	C++
 	FOUNDATION.DLL!-[NSException raise](NSException * self, objc_selector * _cmd) Line 131	Objective-C++
>	FOUNDATION.DLL!+[NSException raise:format:](id * self, objc_selector * _cmd, NSString * name, NSString * format) Line 96	Objective-C++
 	FOUNDATION.DLL!-[NSCFArray objectAtIndex:](NSCFArray * self, objc_selector * _cmd, unsigned int index) Line 86	Objective-C++
 	UIKIT.DLL!-[_UIPageViewScrollView _populatePagesWithOffset:interactive:](_UIPageViewScrollView * self, objc_selector * _cmd, CGPoint * targetOffset, int interactive) Line 491	Objective-C++
 	UIKIT.DLL!-[_UIPageViewScrollView touchesBegan:withEvent:](_UIPageViewScrollView * self, objc_selector * _cmd, NSSet * touches, UIEvent * event) Line 208	Objective-C++
 	FOUNDATION.DLL!-[NSObject performSelector:withObject:withObject:](NSObject * self, objc_selector * _cmd, objc_selector * selector, id * obj1, id * obj2) Line 275	Objective-C++
 	UIKIT.DLL!-[UIView _processPointerEvent:forTouchPhase:](UIView * self, objc_selector * _cmd, WUXIPointerRoutedEventArgs * pointerEventArgs, UITouchPhase touchPhase) Line 609	Objective-C++
 	UIKIT.DLL!__41-[UIView _initPrivWithFrame:xamlElement:]_block_invoke(void * .block_descriptor, RTObject * sender, WUXIPointerRoutedEventArgs * e) Line 767	Objective-C++

[msft-Jeyaram]

^^ pretty much launch the application then click on any of the news article to open and voila, you get the above crash with the stack trace

[aballway]

I'm getting a different error before I can get to that point. I'm gonna file a bug for that n put this on hold until that's resolved. I'm on head of develop too :/

[aballway]

And that access violation seems completely unrelated to the one this bug is originally about. Can you make another issue for that one?

[rajsesh]

Yes, the call stack here indicates _UIPageViewScrollView _populatePagesWithOffset:interactive: is using an empty array. Moving this over to UX.

[yiyang-msft]

fixed.