If you get iphone debug nszombie error, this guide will help you.
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EXC_BAD_ACCESS is an oversight caused by accessing destructive storage. We are constantly working with storage pointers in Swift that point to a specific memory address. Such a pointer has always been known as a “suspended pointer”. The main reason for poor memory must be different.
Adam has done a great job as a cook in explaining what zombies appear to be, but the environment variable isn’t really the best way to find and control them.
A much better approach to detecting zombies is to simply use tools – starting with Xcode, start with “Run Instrument” and select “Associates” as the result.
How do I enable NSZombie?
Then ostStop recording immediately after starting, press the “i” key above the selections and the tool, see “Enable base counter” and “Enable NSZombie detection”. Now click Save Product again and your app will start moving up – when the zombie items are submitted, it will stop saving releases and a timeline for it will open in the popular dialog box. ‘Save – you can access it by clicking it to find wherever the item was saved or published.
Edit: The previous advice was for XCode 3, here is an add-on for XCode 4:
NSZombie is a memory debugging license that can help you debug simple over-release / auto-release issues.
In XCode 4 there are 2, an even simpler zombie search engine – the zombie tool. Instead of Run, use Profiles to launch the application and the selection tool appears. Select “Zombie” and the smartphone app will launch – regardless of the reason for the failure, a dialog box labeled “Zombie Messaged” will appear.
Then click the collapsed arrow in the dialog box. This results in a list of all instances of a zombie object being created, stored, or published. Slide the sidebar across the flight and you can check eachyu record by looking at the batch trace for a code that is great for any amount that is good for counting.
NSZombie is a hard disk debugging tool that can help you minimize over-issue / auto-issue issues.
Question
I have another application crashing with little to no error tracking. I can see part of what happens when debugging, on the other hand, I cannot figure out which object will be the “zombie”.
Does anyone know how to activate NSZombie in Xcode 4?
Solution
Environments are variables that are now part of the “schema”.
To change the zombie pattern:
-
From the Product menu, select the Modify Chart option.
-
Navigate to the Run Foo.app shortcut in the left pane and the specific Arguments tab on the right.
-
Add
NSZombieEnabled
to the appropriate section of the Variables environment and set the evaluation toYES
as you could in Xcode 3.
In Xcode 4.1 and later, the Diagnostics tab also has a runtime-related checkbox to enable “Allow Zombies”.
In Xcode 6.4:
OTHER TIPS
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I faced a similar issue when resolving EXC_BAD_ACCESS and struggled to find the parameter that 4xcode.2 has (the last one is related to the iOS5 SDK). Apple keeps dragging and dropping things and the settings no longer exist where they were.
Luckily I found it and it works on a real device, but not on a simulator. What you actually need to do is open the product menu in Xcode, select Change Schema, and then select the Diagnostics tab. There you have “Activate Zombie Objects”. After selecting and running the debugger, you will be redirected to the shared plural! Have fun!
At a Glance
Product-> Modify Diagram-> Diagnostics-> Click Activate Zombie Objects.
Product> Profile launches tools, then in usCurrently there should be a “Trace Pattern” called “Zombie”. However, this tracing model is only available if the target of the current generation is a human simulator. You cannot get it if you have configured a destination on your iOS device.
It should also be noted that there is no real Zombie tool in the tool library. Zombie, the actual tracing model actually consists of a distribution tool with the “Enable zombie detection” take-off configuration set.
The easiest way is to set up the environment for the executable (NSZombieEnabled = YES)
and then run / debug the application as usual. When you need to send a zombie message, your application may well crash / suspend and debug the NSLog
message to help you.
For more information visit this page: Kakaodev http://www.cocoadev.com/index.This pl? nszombieenabled
Also, with the release of 10.6 and future versions of And xcode Instruments, the process will be much easier. I just said “. =)
product> profile containslive tools. Pick out the zombies in the stairwell and start.
Go to product schema – – change intent – arguments – set environment variables NSZombieEnabled = YES
In xcode 4.2
What is a NSZombie?
Go to Product -> Change Schema -> Run, click your application name. app -> -> Activate the diagnostic zombie object.
From Xcode 3.2.5 and Snow (Mac Leopard OS X 10.6), you can run your code with the Zombies tool: Execute> Execute with the performance tool> Zombies
. This allows people to see specific items and their quantity on a timeline.
Xcode
in 4.5.2 go to product -> change schema -> and under “diagnostic loss” check the box between Objective C and zombie object activation and click “OK”
To support zombie logging, double click the executable in the user executable group in your Xcode project. At this point also click the Arguments tab, create an environment in the last section Variables to define:
a variable namedTake NSZombieEnabled
and set it to YES
to.
In XCode 4.0: NSZombie detection in tools, select simulator as target (cannot detect NSZomboe after device). Run the Zombie trace template for the specific fixture and (cmd + i). Have fun.
Add this NSZombieEnabled
environment variable to most of the executable options and set fun to YES
.
in 3rd terrrrs r XCODE (4.3) after changing the game 🙂 (works)
Select
: Change Scheme
.
Processing control window will open
Click the Argument Type tab
You should see: specific person – arguments passed at startup some environment variables
inside space (2- variable situations)Name: NSZombieEnabled
Value: YES
And it’s over ….
NSZombieEnabled is used to debug BAD_ACCESS,
enable NSZombiesEnabled, which is different from the Xcode schema sheet.
You need to open the product timeline in Xcode, select Change Schema, and then select the Diagnostics tab. Your family has an “Activate Zombie Objects”. Once selected and simply run in the debugger, you will be taken to an object that was freed twice! Enjoy!
Click Sch
How do I enable zombies in Xcode 12?