Xcode 14 is not getting attached to Simulator in Debug mode-CodePudding

The

Xcode console says:

Could not attach to pid : “75997” Domain: IDEDebugSessionErrorDomain Code: 3 Failure Reason: attach failed (Not allowed to attach to process. Look in the console messages (Console.app), near the debugserver entries, when the attach failed. The subsystem that denied the attach permission will likely have logged an informative message about why it was denied.) User Info: { DVTRadarComponentKey = 855031; IDERunOperationFailingWorker = DBGLLDBLauncher; RawUnderlyingErrorMessage = "attach failed (Not allowed to attach to process. Look in the console messages (Console.app), near the debugserver entries, when the attach failed. The subsystem that denied the attach permission will likely have logged an informative message about why it was denied.)"; }

Tried with re-installing Xcode and Command line tools, but issue persists.

Steps:

Build and run app with Debug executables true

Simulator gets launched

Error on Xcode and it gets disconnected from simulator

Is there a possibility that it can be blocked by any other app, if so how to identify ?

CodePudding user response：

I solved the issue by doing the steps below:

SOLUTION 1:

Edit the scheme

Select Run

Select Build Configuration "Debug"

Select "Wait for the executable to be launched"

Close

Run the app

see the screenshot here

You will receive an error message when you run the app again. Close the app. Edit the scheme again and change "Wait for the executable to be launched" to "Automatically".

Now your simulator will work as expected.

SOLUTION 2:

Delete your app folder in Derived Data /Users/[your username]/Library/Developer/Xcode/DerivedData/ Search your app name folders and delete them.

SOLUTION 3:

Open the terminal and run:

sudo DevToolsSecurity -enable

This command enables the Developer Mode. After running the command you will receive this message: [Developer mode is now enabled].

CodePudding user response：

Sometimes it's happen, when you are trying to build too fast after a build has started.

First of all, quit your current simulator, delete derived data and clean the project, wait until whole processing is complete. Then do some changes / editing if required (as we clean all data) and try running on a different simulator.

Check certificates in key-chain access, if you found any untrusted certificates in key-chain access remove it.

Also if you are using beta version just make sure it is downloaded from Apple official website.