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Editorial Team
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Asked: 2026-05-30T20:38:54+00:00

When i use @try @catch, i get error: expected identifier or ‘(‘ before ‘try’

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When i use @try @catch, i get error: expected identifier or ‘(‘ before ‘try’ objective-c

@implementation BannerView
 @synthesize timer;

@synthesize _responceInfo;
@synthesize recivedData;

@try {
NSString* const _mainUrl = 
@"http://www.admobilapp.com/view.php?place_id=15&country_id=112&sex=3&rand=0.7858213884755969&gsmOperator=";
}
@catch (NSException * e) {
    NSLog(@"Exception: %@", e);
}
@finally {
    NSLog(@"finally");
}

NSString*const _ImagePath= @"\"image\":";
NSString*const _ImageClickUrl= @"\"link\":";
NSString*const _imagerotation = @"\"rotation\":";

How to fix it?

error: expected identifier or ‘(‘ before ‘try’ objective-c, fixed, but now if i run application i have another error,
And app is crash.

2012-02-27 00:28:02.794 Clicky[8409:9203] finally
2012-02-27 00:28:02.818 Clicky[8409:9203] * Terminating app due to uncaught exception ‘NSRangeException’, reason: ‘ -[NSCFString substringFromIndex:]: Range or index out of bounds’
** Call stack at first throw:
(
0 CoreFoundation 0x00db1be9 exceptionPreprocess + 185
1 libobjc.A.dylib 0x00f065c2 objc_exception_throw + 47
2 CoreFoundation 0x00d6a628 +[NSException raise:format:arguments:] + 136
3 CoreFoundation 0x00d6a59a +[NSException raise:format:] + 58
4 Foundation 0x000250de -[NSString substringFromIndex:] + 133
5 Clicky 0x00003232 -[BannerView ExtractStringKeyValue:] + 123
6 Clicky 0x000031b1 -[BannerView ExtractImageUrl] + 48
7 Clicky 0x00003739 -[BannerView Refresh] + 59
8 Clicky 0x00003805 -[BannerView initWithFrame:] + 157
9 UIKit 0x0049fce5 +[UIButton buttonWithType:] + 1373
10 Clicky 0x00002e6a -[Examples viewDidLoad] + 51
11 UIKit 0x0036865e -[UIViewController view] + 179
12 UIKit 0x0037b230 -[UITabBarController transitionFromViewController:toViewController:transition:shouldSetSelected:] + 120
13 UIKit 0x00379d86 -[UITabBarController transitionFromViewController:toViewController:] + 64
14 UIKit 0x0037bb7e -[UITabBarController _setSelectedViewController:] + 263
15 UIKit 0x0037b9ed -[UITabBarController _tabBarItemClicked:] + 352
16 UIKit 0x002baa6e -[UIApplication sendAction:to:from:forEvent:] + 119
17 UIKit 0x004b81f2 -[UITabBar _sendAction:withEvent:] + 422
18 UIKit 0x002baa6e -[UIApplication sendAction:to:from:forEvent:] + 119
19 UIKit 0x003491b5 -[UIControl sendAction:to:forEvent:] + 67
20 UIKit 0x0034b647 -[UIControl(Internal) _sendActionsForEvents:withEvent:] + 527
21 UIKit 0x0034916c -[UIControl sendActionsForControlEvents:] + 49
22 UIKit 0x002baa6e -[UIApplication sendAction:to:from:forEvent:] + 119
23 UIKit 0x003491b5 -[UIControl sendAction:to:forEvent:] + 67
24 UIKit 0x0034b647 -[UIControl(Internal) _sendActionsForEvents:withEvent:] + 527
25 UIKit 0x0034a1f4 -[UIControl touchesEnded:withEvent:] + 458
26 UIKit 0x002df0d1 -[UIWindow _sendTouchesForEvent:] + 567
27 UIKit 0x002c037a -[UIApplication sendEvent:] + 447
28 UIKit 0x002c5732 _UIApplicationHandleEvent + 7576
29 GraphicsServices 0x016e7a36 PurpleEventCallback + 1550
30 CoreFoundation 0x00d93064 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION + 52
31 CoreFoundation 0x00cf36f7 __CFRunLoopDoSource1 + 215
32 CoreFoundation 0x00cf0983 __CFRunLoopRun + 979
33 CoreFoundation 0x00cf0240 CFRunLoopRunSpecific + 208
34 CoreFoundation 0x00cf0161 CFRunLoopRunInMode + 97
35 GraphicsServices 0x016e6268 GSEventRunModal + 217
36 GraphicsServices 0x016e632d GSEventRun + 115
37 UIKit 0x002c942e UIApplicationMain + 1160
38 Clicky 0x00002840 main + 102
39 Clicky 0x000027d1 start + 53
)
terminate called throwing an exception

@try @catch doesn’t work. :(.

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1 Answer

  1. Editorial Team

    You cannot use @try/@catch/@finally outside a method body. Assigning a static string cannot fail anyway.

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