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

Question

I m looking for more information on the message below  Xcode 9 seems to be hanging for a couple minutes already    How can I tell Xcode 9 to quickly recognize my previously used device updated to iOS 11    Alex   s iPhone is busy  Preparing debugger support for  Alex   s iPhone Xcode will continue when  Alex   s iPhone is finished

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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

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I had this problem because I hadn t given iTunes permissions to run on the computer    I don t use iTunes for music  so I had foolishly just hit  decline  in annoyance whenever the EULA dialog box came up

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For those looking for solution with Apple TV  I just experience the exact problem  Apple TV is busy  Preparing debugger support for Apple TV    with Apple TV 4K with my Macbook Air  Early 2015   The solution is not to unpair or restart devices  But to switch network  I brought it to a faster and more open network and it works perfectly

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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

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The Best way    Disconnect the Iphone  Clean xcode by command  shift   k or by going to Product -  Clean   Connect again  Run again

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Unpaired my iPhone Removed my USB cable and reconnected it  Do make sure that you unplugged the USB and plugged it back in   Paired the iPhone     3 important steps

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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

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

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When you plug a New device which is having iOS 11  Xcode 9 will Prepare Debugger Support for that device  At this time you should Wait to complete it    Then run the project in that device it will run smoothly   If you didn t keep patience while creating Debugger Support then it will throw the error mentioned in the question

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rebooted iPhone  closed all other open applications and unlocked phone worked

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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

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

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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

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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

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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    Go to Windows   Devices and Simulators  Shortcut key  cmd shift 2    You   ll see iPhone device connected to system with message      iPhone is busy  Preparing debugger support for iPhone  Click on plus button     present in bottom-left corner    This will show the device connected to system  Click on Next button    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

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I updated my iPhone to the latest version 11 0 3  then restarted my iPhone  Restarted my XCode 9  Then it worked

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Click on Window menu Select Device and Simulators Select your device  Click on   button at bottom left corner Click Next Click Done

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I have been using my iPhone X to debug via Network and suddenly had this problem    Disable  Connect via network  and try again with USB   This trick worked for me

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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

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TL DR  Settings   General   Profile  amp  Device Management    Under DEVELOPER APP category  click my email address that happens to be my Apple ID   Trust Developer  This might not be relevant to anyone else  as I am new to iOS development and this was my first attempt to install an application on my phone  but I ll provide the answer as it wasn t yet listed   I went through restarting my phone  restarting Xcode  unplugging and plugging back in  clean building  and even removed the device from the Devices and Simulators menu  However  I believe the cause for me was that I hadn t added my developer certificate to the listed of trusted certificates on my device    I am on iOS 10 3 3 so the navigation and wording in Settings on the phone might be slightly different  but the final step I took before this issue was fixed was to trust my developer certificate as an individual developer on my phone   To do that  go Settings   General   Profile  amp  Device Management    Under DEVELOPER APP category  click my email address that happens to be my Apple ID   Trust Developer  Whether or not that was the cause of my problem  I am unsure  This was  however  the last step that I took before the app ran on my phone successfully after doing all of the other steps listed above

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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

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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

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I left AppCode open while Xcode was trying to process the device  closing it solved the problem  Maybe can be one of the possible issues

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Clean   Shift-Command-K is what works for me

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If running beta software and you update the OS  make sure to get the latest Xcode beta also  This fixed it for me

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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  amp  iPhone Pair Xcode  amp  iPhone again  amp  run application

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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

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Wait a few minutes  The application will start automatically

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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

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just unpaired your iPhone and reconnected it and make connect via network this not use cable any more

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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

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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

User · Answer

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

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Simple solution    Open Window -  Devices and Simulators Unpair iPhone on the side list Unplug and plug again the USB cable Press Trust in the prompt message in the device  Then it should work  It worked for me

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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

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

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