Fixing Xcode 9 issue: "iPhone is busy: Preparing debugger support for iPhone"

There are multiple solutions for this:

Solution 1: Patiently wait for 10 to 15 minutes. Have a tea or roam around ;-)

Solution 2: Disconnect device from the system. Restart both iPhone and Xcode and then rebuild again.

Solution 3:

1. Go to Windows → Devices and Simulators (Shortcut key: cmd+shift+2)

   

2. You’ll see iPhone device connected to system with message

   iPhone is busy: Preparing debugger support for iPhone

3. Click on plus button (+) present in bottom-left corner.

   

4. This will show the device connected to system. Click on Next button.

   

5. Thereafter you’ll see ‘device setup was successful’. Click on Done button.

   

Solution 3 worked for me!

Solution 4:

Unpair your device and then pair it again. Thereafter follow Step 3.

I clicked ‘Cancel Running’, opened the Devices list, unpaired my iPhone, removed my USB cable and reconnected it, paired the iPhone, and then was asked on my iPhone to enter my passcode ("pin code"). Did this and then was finally able to pair my phone correctly.

Wait a few minutes. The application will start automatically

Restarting Xcode worked for me (quit and start again).

What didn't work for me:

• waiting for an hour on one device
• waiting for an hour on another device
• restarting devices
• unpairing/pairing devices

It turns out XCode opens device manager window beneath it and waits for you to hit the next button. Switch to that window, hit next and you get the progress bar for the process to show up.

In my case, iTunes was open, so

1 - open iTunes

2 - access you phone

3 - click to disconnect your phone

Now the device is ready on XCode

Hope it helps....

below solution worked for me, follow steps to resolve your issue:

Step 1: Cancel Running

Step 2 : open Window menu and select Devices and Simulators

Step 3 : Unpair the iPhone

Step 4 : Removed iPhone USB cable and reconnect to the system

Step 5 : Pair the iPhone when you connect then you will be asked to Trust or Don't Allow, Please click Truct on your iPhone and enter your passcode (Pin Code)

Note : I performed all the above steps they worked for me. The issue of my device debugger gone.

Below is the Screenshot of Devices and Simulators Menu

I unplugged my cable and saw this. After it reached the end I was able to run it no problems.

You don't have to unplug to see this; just hit cancel and you will see its progress.

On your iPhone:

Settings > Developer > Clear Trusted Computers

Wait a few seconds, it's all.

1. Click on Window menu
2. Select Device and Simulators
3. Select your device
4. Click on + button at bottom left corner
5. Click Next
6. Click Done

I found deleting the app from the device and re-installing with Xcode solved this issue.

I realised I had less than 100 MBs of free space on my disc. Freeing up disk space solved the issue for me!

I had the same problem many times, these things worked for me:

• restarting my phone + xCode.
• checking that both your Mac and your iPhone are connected to the same Network.( has a high potential ).
• repairing my phone.

The Best way:

1. Disconnect the Iphone.
2. Clean xcode by command+ shift + k or by going to Product -> Clean

Connect again

Run again

My setup

• macOS 10.14.6
• iOS 13.2.3
• Xcode 11.2

Tried all the "speedrun" tips up till 2019-11-24 without luck. The wait seemed inevitable but incredibly long in my case:

with a freshly upgraded iOS version.

I then found this comment on reddit which makes the most sense:

This is required when you connect a device with an iOS version that the respective computer's Xcode didn't see before. It saves them in /Users/username/Library/Developer/Xcode/iOS DeviceSupport and it does take a while. Don't restart Xcode as it will not help you, just wait for it to finish.

It takes quite some time because these debugger support files occupy a lot of space (29 GB for me), though you can safely delete any version from there, and if you connect a device with that version again, it will re-save it from scratch.

So if you just upgraded your iOS, then the "from scratch" part could take longer than usual, also depending on your network condition. In my case, it is definitely much much longer than the "10-15min" other people claimed. I measure it by hours.

A lot of tricks seem to have worked but they neglect the fact that time goes on as you try things while Xcode keeps working on the setup in the background, and quite possibly resumes its job whenever you do a restart/reboot cycle.

This led me to noticing that my Xcode version is just one step behind the iOS point release. After upgrading my Xcode, it worked.

But it took longer because I removed the iOS DeviceSupport folder by following a tip!

So here are my suggestions:

• Check your Xcode version down to the minor version to make sure it should actually support the iOS version.
• Check your Mac's free disk space to make room for newly generated device support content under ~/Library/Developer/Xcode/iOS DeviceSupport as this tip suggested.
• Check if you have connected your device to a fast-enough USB port, as this tip suggests.
• Wait till Xcode finishes "preparing for debugging".
• If it doesn't finish in a few seconds or minutes, keep waiting.
• DO NOT remove any folder as some tips may suggest. Removal would simply make you wait longer!

rebooted iPhone, closed all other open applications and unlocked phone worked

Clean : Shift-Command-K is what works for me.

I updated to iOS 11.0.3 then the error appeared. After restarting my iPhone and XCode, it showed "Could not launch the app", so I navigated to the phone's device management to trust, then it solved.

For me it Worked after following the below steps

Step-1 Go to Devices and Simulator

Step-2 Deselect Show as run destination and Connect via network Options

Wait for Few seconds to Load the Xcode, If you want you can restart Xcode also.

Step-3 Follow the same steps and got to Devices and Simulators

Tick back both the options and it will be normal to install your app back.

Xcode 10.3 Solution

The following error messages apply:

iPhone is busy: Preparing debugger support for iPhone Xcode will continue when iPhone is finished.

An error was encountered while attempting to communicate with this device. (The service is invalid.) Please try rebooting and reconnecting the device. (0xE8000022).

Follow the steps in Jayprakash Dubey's post above

and

• Close Xcode;

• Delete contents of DerivedData folder ~/Library/Developer/Xcode/DerivedData

• Restart Xcode & iPhone

• Pair Xcode & iPhone again

• & run application

Do this Two Task to solve your problem:

First Go to Xcode then -> Preferences -> Accounts then below click the plus icon to add apple id it must me same as your iphone device apple id.

Second Just change the cable if first solution can not work

I updated my iPhone to the latest version 11.0.3, then restarted my iPhone. Restarted my XCode 9. Then it worked.

I had the same problem on macOS 10.14.5 using Xcode 10.2.1. After none of the solution here worked for me I restarted the Mac and this did the trick...

I've faced the same problem because of a cable. I changed my third party USB/lighting cable into original Apple cable, and it worked.

Today, I have faced the issue and tried out everything mentioned here and different pages as well. Nothing worked for me.

Lastly, I have reset the iPhone, then tried building the application and finally it worked for me.

** Solution : Shutdown your Apple Watch [x], unplug cable and then plug it again. Reason: You can try this solution if you don't develop an apple watch application, because Xcode is looking for an apple watch developer sdk. **

Thinking it would be apple watch related, I turned off the watch, then restarted my phone for all connections to be closed. This way, I was able to connect to my phone without any problems. but a few days ago I was desperately turning my phone off and on while trying to fix this problem. the problem was not fixed. Instead of checking the devices, I think it is necessary to focus on what the problem is. Apple officials have to explain something about this.

I spent like 10 or more hours trying all the answers and none worked for me! From here can be read this too:

This usually means that Xcode is busy copying debug symbols from the device. This can be impacted by...

But it worked for the other, newer phone, so my issue was located to a question: "why XCode can't copy..." - whatever he needs?

• because it is an error at the motherboard around the microphone, not the device itself, and that's why some apps are working, like registering a video ( without sound) and other apps like Talking Tom not. I have changed the phone owner, changed the privacy settings, unlugged, unpaired, rebooted: none worked. -and on that phone it will work after the motherboard it is replaced.

So sometimes can be a hardware issue.

This is a suggestion when I open the details:

Please delete apps signed with your free account from this device to remain under the limit.

So I've deleted 1 app from the iPhone, then the new app installed successfully.

The 'Continue' button is under the error message. Just hit 'Enter'

You should confirm that the device was listed on my 'Managed Devices' on Apple @ https://appleid.apple.com/account/manage

Solution1:

• In Xcode Goto window>Devices and Simulators. you will see the connected device busy processing
• Just remove the USB and connect again.

Solution2: Restarting the device will also solve problem.

Solution3: Wait for 4 to 5 minutes will also works.

There seem to be a lot of issues related to the same error. For me it was the applications which I've installed from another iMac whose files where not present on my MacBook so Xcode was not able to find the files making the debugger to wait forever!

Solution: Deleting all the application which I've installed from the iMac helped me solve the problem.