Xcode stuck on Indexing

Question

A project I ve been working for 2 months stopped working for no reason because Xcode got stucked on  Indexing   I can t Build the project anymore  If I try to build  Xcode freezes and I have to force quit  This happens only with this project   I tried cleaning all derived data but didn t help   I m using Xcode 4 5 2   Any ideas

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Had this problem on a SwiftUI project  Turned out one of my SwiftUI views had an incorrectly declared variable  I had    EnvironmentObject var roomViewModel   where I needed    EnvironmentObject var roomViewModel  RoomViewModel   There was no compiler error  just endless indexing  After I fixed the error  the project built quickly

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My case  it was not the project xcworkspace file  it was not the Derived Data folder   I ve wasted a lot of time  Worse  no error message  No clue on the part of Xcode  Absolutely lost   Finally this function  with more than 10 parameters  is responsible   func animationFrames level  Float                       image  String                       frame0  String                       frame1  String                       frame2  String                       frame3  String                       frame4  String                       frame5  String                       frame6  String                       frame7  String                       frame8  String                       frame9  String                       frame10  String        To go crazy  The truth is that it is worrisome  because there is no syntax error  or any type

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It s a Xcode bug  Xcode 8 2 1  and I ve reported that to Apple  it will happen when you have a large dictionary literal or a nested dictionary literal  You have to break your dictionary to smaller parts and add them with append method until Apple fixes the bug

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I experienced the same issue for Xcode 7 0 beta  In my case  values for  Provisioning Profile  and  Product bundle identifier  of  Build Settings  differed between PROJECT and TARGETS  I set the same values for them  And I also used the same values for TARGETS of  appName  and  appNameTest   Then closed the project and reopened it  That resolved my case

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Faced this recently on XCode 7 3 1 - for me  I noticed RAM usage going to 100  on to CleanMyMac3  The problem magically fixed itself after I restarted my machine  In all fairness however  I d already gone ahead and tried the accepted-answer  so you ll want to do the same before you restart just in case  -

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Close any opened Xcode rm -rf   Library Developer Xcode DerivedData Right click your PROJECT NAME xcworkspace  choose  show content   and delete  xcuserdata  folder

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Nothing worked for me  my project is too big  merging objective c  c    swift  and java files with j2obj   I ve disabled Xcode indexing and worked without code completion for months  and it s a pain   But finally I ve found a workaround  The idea is to keep Xcode indexing the code  but to limit its CPU usage with an external tool like cputhrottle    So first you need to install cputhrottle in terminal     brew install cputhrottle   Then limit the Xcode indexing process like this  20   20       sudo cputhrottle   pgrep -f com apple dt SKAgent  20   I ve exposed my  solution  here with mode details   How to prevent Xcode using 100  of CPU when indexing big projects

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When using Xcode 6 and it says      Waiting for make   It might be that an instance of make is already running  Kill the process and indexing proceeds  Silly  but worked for me

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In my case  deleting the derived data directory did not help  Apparently I had a file locked by another process  because after closing out a couple of terminal windows and emacs  and terminating a react-native packager process  everything resolved

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I had the same issue in swift 2 2   It had to do with a generic function overloaded function  func warnLog         print  Warning line     line  file     file        func warnLog lt T gt  input T    nil  - gt  T        print  Warning line     line  file     file         return input    func warnLog lt T gt  input T  - gt  T       print  Warning line     line  file     file         return input     all I needed to do is remove one of the non used overloads  func warnLog lt T gt  input T    nil  - gt  T        print  Warning line     line  file     file         return input

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This happened to me  If you are using cocoapods do this    Delete project xcworkspace Reinstall pods using  pod install  on the terminal It will create a new project xcworkspace Open the new project xcworkspace -  Clean -  Build

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I had a similar problem  and found that I accidentally defined a class as its own subclass  I got no warning or error for this but the compiling got stuck   class mainClass   mainClass

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Another thing to try if your trying to solve indexing issues and you re this far down the page   Try adding this flag to your build settings   -Xfrontend -warn-long-expression-type-checking 400    It will cause warning where the compiler take a long time to deduce a complex expression     This may cause a build error which will go away after you find the slow expressions and then remove the build flag

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For me completely closing out of Xcode and then restarting the project worked   This is not the solution for the original question  I don t believe  but it is one more simple thing to try before deleting files and folders  etc  Credit to this answer for the idea

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Close Your Xcode   close any git client source tree or terminal if it is opened and finally restart your project

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I have experienced this problem in some projects with Xcode 9 3 1 and in my case the problem is due to some swift code that for some reason Xcode doesn t like  This problem is hard to solve because is difficult to find what file is causing the problem   When I have this problem  I removing some files from the Xcode project  removing references  and I try to test if indexing works  My process to do so   Remove some files Close Xcode Open Xcode If indexing finish try to rename some method if works probably the files you have removed they have something strange for Xcode     In my case I had a class definition with a reactive extension in the same file and for some reason Xcode doesn t like it  I moved the reactive extension to another file and now the indexing works fine

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For me  the cause was I opened the same file in both the Primary Editor and Assistant Editor at the same time  Once I closed Assistant Editor  it came through   Xcode Version 7 2 1

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Command-Option-Shift-K to clean build folders

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Hold alt   Product   Clean Build Folder

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Open your Project Folder  Find ProjectName xcodeproj file  Right-Click Copy and Paste to Safe Place  Right-Click Show Package Contents  Find project xcworkspace file and delete that file  Reopen Your Project and clean and Rebuild    If your problem is not solved then replace the file with your backup file

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I had a similar problem where Xcode would spend lots of time indexing and would frequently hang building the project  at which point I had to force-quit and relaunch Xcode  It was very annoying     Then I noticed a warning in the project about improperly assigning self as a delegate   Sure enough  there was a missing protocol in the class declaration  Note that there is a similar assignment in the OP s sample code  though it is impossible to tell from the sample whether the correct protocol is declared    leaderboardController leaderboardDelegate    self    After resolving that warning  by correctly declaring the implemented protocol   Xcode stopped misbehaving   Also  I should note that the project did execute correctly since the protocol methods were implemented   It was just that Xcode could not confirm that the protocol should in fact implemented by the class

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First  disconnect from network  Both your wired network and wireless network should turn off  Second  kill the com apple dt SourceKitService process  Then XCode would start to index again instead of stuck

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For XCode 9 3 indexing issue - Uninstall the XCode and instal again from zero  Works for me

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I m working with Xcode 11 4 1 and I have the same problem with several projects  Every time  when internet connection is lost  indexing gets up  The best solution  it s just my opinion based on observing this problem   - turn off internet and just kill the  quot com apple     quot  process  then restart the Xcode turn on connection  or more easier - just restart the Mac with the internet

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I ve tried all the things listed  indexing is keep freezing  This helped me  If your indexing is freeze  and you have one or more swift process eating 99  of your cpu - just kill this swift task s   wait a bit  and progress should move  It can repeats  until it reaches finish  in my case I killed the process 7 times  but at the end  indexing was completed

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Also stop running app  if you have another application running with your xcode  stop it first and you should have your indexing continue

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I fixed this by simply deleting the app from my device and rebuild

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Yes each time I try to open my Main Storyboard Xcode freezes suddenly  This was happening with only one of my projects then it happens to all my projects on Xcode  Tried the following with no luck   Remove Xcode  amp  reinstall it   Factor reset my mac   Create a new project and move folders to the new project  Also not worked for me    Solution  In my case   which I believe it happens to most of you  I have noticed that process named  quot IBAgent-iOS quot  consumes most of my CPU resources  Each time I want to open the storyboard it consumes up to 97  of CPU resources  So I need to go to Activity Monitor  gt  Search for this process name  quot IBAgent-iOS quot   Mainly appears at the top   gt  click on it and Force Quit

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This issue happened to me when my machine was out of swap space  Closed several programs and browser tabs and the build suddenly succeeded after 30 minutes of being stuck in place  Nothing to do with derived data  locked files  etc  on my side

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I too was facing the problem  I noticed that I have opened the same project twice   So QuitXCode   Open your project and make sure only one instance is open   Clean   CleanBuild Folder in some cases   build   It should work

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I had this exact problem  it was caused by a 20 item array literal  Had to switch to different syntax  Pretty silly

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Had similar problem in Xcode 6 4   The progress bar indicated that  Indexing  was  Paused    Tried deleting project xcworkspace  then deleting Derived Data as described above   Did not appear to help   Noting that the posts above also suggest fixing warnings  and since I had inherited this huge project with 180 warnings  I said to myself   What the hell this looks like a good day to fix warnings    As I was fixing warnings  a half hour later  I noticed that the  Indexing  progress bar had increased from 10  to about 20    An hour later  it was at 50   then another hour to 80   then after another half hour it was done   Conclusion  Add  take a long lunch or a nap  to the above suggestions

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For me  I made a stupid mistake   I write a Class like this   class A  A               A class inherit itself that causes the freezing  There is no message hint from Xcode

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Close that project from Xcode Open Xcode Organizer  find the problematic project Delete Derived Data folder in the Organizer Close re-open Xcode   Nuking Derived Data is the first thing to try in all cases of Xcode misbehaving

[xcode] Xcode stuck on Indexing

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