Sign Up

Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.

Have an account? Sign In

Have an account? Sign In Now

Sign In

Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.

Sign Up Here

Forgot Password?

Don't have account, Sign Up Here

Forgot Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

Have an account? Sign In Now

You must login to ask a question.

Forgot Password?

Need An Account, Sign Up Here

Please briefly explain why you feel this question should be reported.

Please briefly explain why you feel this answer should be reported.

Please briefly explain why you feel this user should be reported.

Sign InSign Up

The Archive Base

The Archive Base Logo The Archive Base Logo

The Archive Base Navigation

  • SEARCH
  • Home
  • About Us
  • Blog
  • Contact Us
Search
Ask A Question

Mobile menu

Close
Ask a Question
  • Home
  • Add group
  • Groups page
  • Feed
  • User Profile
  • Communities
  • Questions
    • New Questions
    • Trending Questions
    • Must read Questions
    • Hot Questions
  • Polls
  • Tags
  • Badges
  • Buy Points
  • Users
  • Help
  • Buy Theme
  • SEARCH
Home/ Questions/Q 6808417
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Editorial Team
Asked: May 26, 20262026-05-26T19:57:10+00:00 2026-05-26T19:57:10+00:00

NSObject * obj = [[NSObject alloc] init]; NSDictionary * dict = [NSDictionary dictionaryWithObject:obj forKey:@test];

  • 0
NSObject * obj = [[NSObject alloc] init];
NSDictionary * dict = [NSDictionary dictionaryWithObject:obj forKey:@"test"];

For some reason gives me the following crash when executed :

*** Terminating app due to uncaught exception 'NSInternalInconsistencyException',
reason: '-[__NSCFDictionary setObject:forKey:]: mutating method sent to immutable
object'

I can’t pinpoint what the issue is as I’ve done my homework and it seems to be valid code… I’m breaking my head over this!

  • 1 1 Answer
  • 0 Views
  • 0 Followers
  • 0
Share
  • Facebook
  • Report

Leave an answer
Cancel reply

You must login to add an answer.

Forgot Password?

Need An Account, Sign Up Here

1 Answer

  • Voted
  • Oldest
  • Recent
  • Random
  1. Editorial Team
    Editorial Team
    2026-05-26T19:57:11+00:00Added an answer on May 26, 2026 at 7:57 pm

    I just ran your code without any problems. Are you sure it’s not crashing after creating the dictionary? The exception you’re getting seems to indicate that you’re trying to add an object to the dictionary, which can’t be done since NSDictionary is immutable. You need to use NSMutableDictionary if you want to add/remove objects after creation.

    • 0
    • Reply
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
      • Report

Sidebar

Related Questions

Is there any practical difference between the following two code snippets: NSObject * obj
I have following simple class: @interface Article: NSObject { NSString *title; } @property (copy,
I have a loop using the for (NSObject *obj in someArray) { } syntax.
//class definition @interface class1 : NSObject { NSMutableArray *array ; void (^test)() ; }
I have the following inheritance tree: NSObject <- GameObject <- RenderableObject <- SimpleBullet GameObject
I have an NSDictionary in which I use my own classes (NSObject subclasses) as
In Obj-c when declaring a variable within @interface @interface: NSObject{ MyObject* myObject} @property (unsafe,
In the NSObject Class Reference they talk about an isa instance variable which is
The object inherits from NSObject. Is there a method to create a copy of
For example: @interface Fraction: NSObject { ... When wouldn't NSObject be used and is

Explore

  • Home
  • Add group
  • Groups page
  • Communities
  • Questions
    • New Questions
    • Trending Questions
    • Must read Questions
    • Hot Questions
  • Polls
  • Tags
  • Badges
  • Users
  • Help
  • SEARCH

Footer

© 2021 The Archive Base. All Rights Reserved
With Love by The Archive Base

Insert/edit link

Enter the destination URL

Or link to existing content

    No search term specified. Showing recent items. Search or use up and down arrow keys to select an item.