Assertions in dequeueReusableCellWithIdentifier:forIndexPath failed:

This text was translated from: Assertion failure in dequeueReusableCellWithIdentifier:forIndexPath:

So I was making an rss reader for my school and finished the code. So I was preparing an RSS reader for my school and finished the code.I ran the test and it gave me that error.Here is the code it's referring to: This is the code it refers to:

- (UITableViewCell *)tableView:(UITableView *)tableView 
         cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    static NSString *CellIdentifier = @"Cell";
    UITableViewCell *cell = 
     [tableView dequeueReusableCellWithIdentifier:CellIdentifier 
                                     forIndexPath:indexPath];
    if (cell == nil) {

        cell = 
         [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle  
                                reuseIdentifier:CellIdentifier];

    }

here's the error in the output: This is an error in the output:

2012-10-04 20:13:05.356 Reader[4390:c07] * Assertion failure in -[UITableView dequeueReusableCellWithIdentifier:forIndexPath:], /SourceCache/UIKit_Sim/UIKit-2372/UITableView.m:4460 2012-10-04 20:13:05.357 Reader[4390:c07] * Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'unable to dequeue a cell with identifier Cell - must register a nib or a class for the identifier or connect a prototype cell in a storyboard' * First throw call stack: (0x1c91012 0x10cee7e 0x1c90e78 0xb64f35 0xc7d14 0x39ff 0xd0f4b 0xd101f 0xb980b 0xca19b 0x6692d 0x10e26b0 0x228dfc0 0x228233c 0x228deaf 0x1058cd 0x4e1a6 0x4ccbf 0x4cbd9 0x4be34 0x4bc6e 0x4ca29 0x4f922 0xf9fec 0x46bc4 0x47311 0x2cf3 0x137b7 0x13da7 0x14fab 0x26315 0x2724b 0x18cf8 0x1becdf9 0x1becad0 0x1c06bf5 0x1c06962 0x1c37bb6 0x1c36f44 0x1c36e1b 0x147da 0x1665c 0x2a02 0x2935) libc++abi.dylib: terminate called throwing an exception 2012-10-04 20: 13: 05.356 Reader [4390: c07] *-[UITableView dequeueReusableCellWithIdentifier: forIndexPath: ],/ SourceCache / UIKit_Sim / UIKit-2372 / UITableView.m: 4460 2012-10-04 20 Assertions in failed: 13:05.357 Reader [4390: c07] *Because of an uncaught exception " NSInternalInconsistencyException"Terminate the application for the following reason:'The identifier cannot be made Cell Unit Queue-A pen tip or a class must be registered for the identifier, or prototype units must be connected in the storyboard.*First throw call stack: (0 x1c91012 0x10cee7e 0x1c90e78 0xb64f35 0xc7d14 0x39ff 0xd0f4b 0xd101f 0xb980b 0xca19b 0x6692d 0x10e26b0 0x228dfc0 0x228233c 0x228deaf 0x1058cd 0x4e1a6 0x4ccbf 0x4cbd9 0x4be34 0x4bc6e 0x4ca29 0x4f922 0xf9fec 0x46bc4 0x47311 0x2cf3 0x137b7 0x13da7 0x14fab 0x26315 0x2724b 0x18cf8 0x1becdf9 0x1becad0 0x1c06bf5 0x1c06962 0x1c37bb6 0x1c36f44 0x1c36e1b 0x147da 0x1665c 0x2a02 0x2935)libc ++ abi.dylib: Terminate call throws an exception

and here's the code it shows in the error screen: This is the code it displays in the error screen:

int main(int argc, char *argv[])
{
    @autoreleasepool {
        return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
    }
}

please help! please help!

#1st floor

Reference resources: Https://stackoom.com/question/rRhM/dequeueReusableCellWithIdentifier-for IndexPathAssertion failed in

#2nd floor

You're using the dequeueReusableCellWithIdentifier:forIndexPath: method. You are using dequeueReusableCellWithIdentifier:forIndexPath: Method.The documentation for that method says this: File Explain:

Important: You must register a class or nib file using the registerNib:forCellReuseIdentifier: or regiSterClass:forCellReuseIdentifierImportant note: Before calling this method, you must use registerNib:forCellReuseIdentifier: or registerClass:forCellReuseIdentifier: Method to register class or nib file.

You did't register a nib or a class for the reuse identifier "Cell". You did not register a pen tip or class for the reuse identifier "Cell".

Looking a t your code, you look to expect the dequeue method to return nil if it doesn't have a cell to give you. Look a t your code, it seems you want the dequeue method to return nil without cells.You need to use the dequeueReusableCellWithIdentifier: for that behavior: You need to use dequeueReusableCellWithIdentifier for this behavior:::

UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

Notice that dequeueReusableCellWithIdentifier: and dequeueReusableCellWithIdentifier:forIndexPath: are different methods. Note that dequeueReusableCellWithIdentifier: and dequeueReusableCellWithIdentifier:forIndexPath: Different methods.See doc for the former and the latter . the former and the latter See doc.

If you want to understand why you'd want to ever use dequeueReusableCellWithIdentifier:forIndexPath: , check out this Q&A If you want to know why you want to use dequeueReusableCellWithIdentifier:forIndexPath:, please dequeueReusableCellWithIdentifier:forIndexPath: This question and answer .

#3rd floor

I'll just add that Xcode 4.5 includes the new dequeueReusableCellWithIdentifier:forIndexPath: I will add Xcode 4.5 to include the new dequeueReusableCellWithIdentifier:forIndexPath:
in its default template code - a potential gotcha for developers expecting the older dequeueReusableCellWithIdentifier: method. In its default template code - this is a potential challenge for developers who expect to use the older dequeueReusableCellWithIdentifier: method.

#4th floor

i had the same problem replacing with I had the same problem replacing with

static NSString *CellIdentifier = @"Cell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

   if (cell==nil) {
        cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];

    }

solved Solution

#5th floor

I think this error is about registering your nib or class for the identifier. I think this error is related to registering your pen tip or class as an identifier.

So that you may keep what you are doing in yourTableView:cellForRowAtIndexPath functionAnd just add code below your viewDidLoad: This allows you to retain your work in the tableView:cellForRowAtIndexPath function by adding the following code to the viewDidLoad:

[self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"Cell"];

It's worked for me. It works for me.Hope it may help. Hope it helps you.

#6th floor

In your storyboard you should set the'Identifier'of your prototype cell to be the same as your CellReuseIdentifier'Cell'. In the storyboard, you should set the'Identifier' of the prototype cell to be the same as the CellReuseIdentifier'Cell'.Then you won't get that message or need to call the registerClass: function. You will not receive the message or need to call the registerClass: function.

Tags: xcode

Posted on Fri, 19 Jun 2020 22:23:04 -0400 by lin