CODEWITHSUNDEEP
objective-cioscocoa
jason white
jason white

Reputation: 711

Getting an error from adding to a NSDictionary

main_dict = [[NSDictionary alloc] init];
NSMutableArray *insert = [[NSMutableArray alloc] init];
[insert addObject:main_event];      
NSString *count = [NSString stringWithFormat:@"%i",total_count];
[main_dict setValue:insert forKey:count];

I initialized the NSDictionary, main_dict and the NSMustableArray, insert. Then I added the main_event to the insert array. Finally added that array into dictionary with the key value.

I got SIG_ABRT signal when I stepped into the [main_dict setValue:insert forKey:count];

What's wrong? I have all the elements initialized and have values, but still SIG_ABRT.

Upvotes: 1

Views: 133

Answers (2)

user1739995
user1739995

Reputation:

You need to change the data type of main_dict to mutable type. NSDictionary is an immutable type and you can not edit it. So change it as main_dict = [[NSMutableDictionary alloc] init];

Upvotes: 4

Kjuly
Kjuly

Reputation: 35181

You cannot modify NSDictionary type instance. Just replace

main_dict = [[NSDictionary alloc] init];

to

main_dict = [[NSMutableDictionary alloc] init];

will solve this issue.

Upvotes: 2

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