This morning, Xcode 9.0 (9A235) shows a new/strange Auto Complete box that is not at all what it used to be. How do I get the full auto-complete box so that autocomplete looks like how it usually does?
Try:
Go to Xcode > Preferences > Text Editing
Under Code completion - Uncheck 'Suggest completions while typing'
Quit out of Xcode and then relaunch Xcode.
Go to Xcode > Preferences > Text Editing again
Quit out of Xcode and then relaunch Xcode.
Now go to Code completion and check 'Suggest completions while typing'.
Try typing library function or enum and enjoy!
Deleting the DERIVED DATA folder seemed to fix my issue. Thanks to this post: swift println() not showing autocomplete options while writting code
Things to try:
#1
Run this command in the project directory if you use cocoapods:
rm -rf ~/Library/Caches/CocoaPods;
rm -rf Pods; rm -rf ~/Library/Developer/Xcode/DerivedData/*;
pod deintegrate; pod setup; pod install;
#2
**Clean Cached Data**
Clean the Project -> Cmd+Shift+K
Clean the Build Folder -> Cmd+Shift+Option+K
If you skipped step one:
Delete Derived Data
Xcode Preferences -> Locations ->
Arrow Symbol Takes you to DerrivedData -> Delete Folder
#3
**Check your Build Phase's Compile Sources.**
Every .swift and .m file in the project should be in this list or it won't autocomplete in those files.
#4
**Optimize your Editor:**
Use fileprivate* on every class property and function that you can to reduce the scope of the Compilers work per item.
Write modular/OOP code so you have less code for the compiler to read.
Avoid using Type Inferance when the result is a complex calculation, and try to break down complex calculations into let this = smallerOperation statements
* In Swift 4 private became stricter than fileprivate
In Xcode 12 there have been significant improvements in how often deleting derived data is necessary (though freezing has increased).
Xcode Version 11.0 (11A420a)
I have tried the solution from Lal Krishna for Xcode V11.0. It worked a few times but later I got no result.
I found one solution. You must delete two files:
Library/Developer/Xcode/Derived Data (as described before)
Library/Developer/Xcode/UserData/IDEEditorInteractivityHistory
That solution helps me now. May be useful for others 😉
This can happen when the file is not a member of the Target. Open the file where autocomplete is not working and show the the "Utilities" tab in the top right of Xcode (blue in the screenshot below).
Ensure your Target (typically your app's name) is checked. Autocomplete should work almost instantly without restarting Xcode, cleaning, or deleting Derived Data.
If it is already checked, make sure to uncheck and recheck it again. For me, it did the trick.
I'm using Xcode 10.2 and I had the same issue.
This answer from axel helped me to fix.
Anyway, I'm going to describe a bit more:
Go to YourProject.xcodeproj by clicking with Right Mouse Click and open Show Package Contents
Go to xcuserdata and delete your youruser.xcuserdatad
If you have also the xcworkspace(if you already have any pods installed) then do step 3&4, if not then just skip step 3&4:
Go to YourProject.xcworkspace by clicking with Right Mouse Click and open Show Package Contents
Go to xcuserdata and delete your youruser.xcuserdatad
Quit Xcode
Delete Derived Data by using Terminal:
rm -rf ~/Library/Developer/Xcode/DerivedData
Open Xcode and check if it works.
This can also happen if you redundantly named your files. For example,
Data.swift
Data.swift
Here's a bit of workaround but works.
Clean the project... Command + Shift + K
Clean the build folder... Command + Shift + Options(Alt) + K
Delete derived data for the project...
This can be done with the help of this link:
How can I delete derived data in Xcode 9?
Close XCode.
Reopen XCode (let the indexing complete) and Build the project... Command + B
Once it will be done with building, The suggestions will be back. I have tried it twice.
Update:
Sometimes the issue can be as simple as Duplicate file names.
Carefully check if any new file names added by you are conflicting with older files.
In Xcode 11.4, even if you move an existing file to another group, the suggestions disappear. This can be cured simply by restarting Xcode.
Removing the file from the Test Targets fixed my problem.
After a long time of searching, I finally fixed the issue for me. In Xcode > Preferences > Text Editing, in "Code Completion", I had "Use Escape key to show completion suggestions" checked for some reason. As soon as I unchecked this box, auto completion worked like a charm, without even needing to restart Xcode! (Xcode 10)
Please try doing this:
Select the file >> check if the file is added to UITesting or UnitTesting targets (File inspector -> Target Membership). If so, please uncheck those two and make sure only the project target is selected. Then build and try if autocomplete is working fine.
This worked for me. Hope it help someone.
For Xcode 11.4 (11E146)
Back Slash in folder name breaking the autocompletion feature, If this is the case remove it and build again.
I added here what was going on in my project just in case it can help someone else... I had 2 files with the same name and I didn't realise.
Just lost a day trying to solve the autocomplete nightmare of Xcode (9.2). Deleting derived data seemed to work briefly then things reverted. Reboots etc and other suggested voodoo failed to make a difference.
I gave up and download the 30 day trial of AppCode from Jet Brains. Autocomplete worked fine there and this maybe coincidence but it then started working again in my project in Xcode. Can't guarantee that it'll keep working...
It seems to be file specific in my case (Xcode 9.2) For me the fix was:
Delete problem file (remove reference)
Clean and Build
Add file back into the project (I did not check test targets)
Build again
Finally after 3 hours of trying everything - autocomplete works as it should.
Problems mostly because there are missing location of some files in project navigator (build errors)
Press command+1 to open Project Navigator pane
Check if there are any missing files
Or you can:
Delete DerivedData (command+shift+K)
Clean build folder (command+shift+option+K)
Press build again (command+B)
You should see build error that Xcode could not find some files that prevent build tool to process auto complete.
Correct and fix any missing files that you see.
Hope this helps
Use Command + B
or Command + R to Build or Run the project
Xcode sometimes messes up ;)
Xcode 11.3, macOS catalina
process parsecd achieve 100% of cpu, so kill it helps me
goto underneath directory and delete all folders on it.
{Your User}/Library/Developer/Xcode/DeriveData
It worked for me.
For me it was happening in my test file, because it wasn't part of a target for some reason. Setting it's target membership solved the issue.
For me, the problem occured when I discarded all the changes of one file (under Source Control > Commit), which effectively deleted the file. This is what I wanted and I thought that the file and all references to it would be delted too.
However, there was still a reference to the file (shown in red) in the Project navigator. Deleting the (now non-existant) file in the Project navigator magically brought auto-completion back.
No amount of cleaning, deleting derived data, etc helped. I only realized the deleted file was still showing when I tried to build my project, which of course failed because it couldnt find that file.
Hope this will help someone save 30 minutes :)
check whether you selected the Suggest completions while typing in Xcode -> Preferences -> Text Editing
navigate to user->Library->Developer->Xcode->DerivedData in Finder and delete the DerivedData folder
My case might appear too specific to help, but it might give someone an idea of how to solve broken auto-completion. Xcode 10.2.1.
In my case, auto-complete stopped working entirely and non of these other answers helped me. In addition, the fan on the computer could be heard to go louder indicating something was overworking (no other apps running), it should be noted I was editing on a MacBook Pro laptop. It seemed to be linked with the editor struggling to parse the equation I'd written:
switch mtype {
case .indeterminate:
newPosition.x = (frame.width - mainFigureText.frame.width) / 2
case .right:
newPosition.x = (((frame.width / 2) - mainFigureText.frame.width) / 2) + (frame.width / 2)
case .left:
newPosition.x = (((frame.width / 2) - mainFigureText.frame.width) / 2)
}
I was looking to animate a text view left, right, or to the middle depending on user prefs. The newPosition is a CGPoint that the text will animate to. Anyway, I split the equations up and all of a sudden auto-complete started working and the fan went quiet! I've been able to recreate this specific problem more than once by re-typing the above code and then replacing it with:
let halfFrameWidth: CGFloat = frame.width / 2
let middleLeft = (halfFrameWidth - mainFigureText.frame.width) / 2
switch doseType {
case .right:
newPosition.x = middleLeft + halfFrameWidth
case .left:
newPosition.x = middleLeft
default:
newPosition.x = (frame.width - mainFigureText.frame.width) / 2
}
I would like to add one more to the pile of solutions, because it is the only one that worked for me and is nowhere to be found here.
Xcode normally comes with two default build configuration for every project. Release & Debug. I have an extra one for my unit tests called Testing. In Xcode 10.1, 10.2, 10.3 and 11 beta, the new build system does not seem to like it and will only auto-complete if you either use Release or Debug. Any custom build configuration breaks auto-completion in mixed (swift + objc) project with unit tests.
I faced the same problem in Xcode 11.3.1. In my case The issue was cause due to duplicate file names / Deleted file name. Better to run the application once and check whether there are any deleted files/classes so that you will get a syntax error.
This Link helped me. Open the Build Settings & fill the framework search paths. See the below image.
Build errors can break the autocompletion feature in Xcode.
I had the issue with 100% not working auto-complete, none of written here helped. One thing I noticed – it was broken right after adding some entities into .xcdatamodel file, which have codegen class definition by default.
So I wasn't surprised when using old-style codegen none (and generating classes of course) fixed the issue immediately, even without restarting the xcode.
With Xcode 11.1, simply performing Clean Build Folder or deleting derived data was not enough to fix autocomplete.
Only after restarting my Mac, everything was back to normal
If you have issue with weird completion/auto-completion/intellisense (not showing default stuff like delegates and datasource protocols methods) just change your target (e.g. from simulator iPhone 8 to real device), build the project and switch back to your original target.
Similar with issues with Interface Builder (storyboards) not showing anything, but only "nothing selected" whenever you select any part of the view. Just switch to other Xib/Storyboard (or even create new), check if it works there and switch back.
These workarounds worked for me in both cases (had both issues in one day with one project on Xcode 10.2.1). From what I've seen all over internet forums it seems these are bugs never fixed since Xcode 6.x or so.
Cheers!
I'm talking about a functionality such that you can just quickly open a .cpp file (C++ console application, nothing regarding Apple ecosystem), work on it, compile and run, without all the project creating mumbo-jumbo. When I open a file with code, all the "Product" options are greyed out for me but after some googling, I found posts claiming that Xcode 5 was to be the first one offering such functionality. Has it been implemented and it's just available elsewhere or were they false rumors and you still have to create a project and import a file there?
Or if you want a shortcut: CTRL + COMMAND + B.
In the top menu of XCode "File - Edit - View" you will see Product.
Click Product->Perform Action->Compile "myfile.xxx"
If you want a shortcut for that command, click XCode -> Preferences-> Key Bindings and set one up.
One would think that adding a project to a Workspace in Xcode would be intuitive.
1) But when you add a new project it is added within the existing project - It must be a bug, or is there actually a reason.
2) How do you add a project then (ctr + right click et.)
You could use the plus (+) button on the lower left corner of Xcode IDE to add a new project to a workspace. You must have first a blank workspace, which you could use the menu (New/Workspaces with short cuts ^%N).
To morning I spend some time doing what you asked to. so here are the steps (you can skip if you already have followed some).
Create a new blank work space
Add a project to it by clicking File->Add new files to "Your workSpace" or "command+option+A"
Choose your project folder Or yourproject.xcodeproj file
Just let the indexing finish properly, and congratulations you have added a new project to your xcode work space successfully.
Note: Make sure that project which you are adding is not already opened, Xcode get lil sensitive about that and doesn't show files tree in workspace in that case.
My answer pertains to XCode 5, but should pertain to XCode 4 as well.
In typical Apple fashion, they have given you multiple ways to do the almost the same thing. Very confusing and annoying. There are three ways, and only one way pertains to the original posters question:
(1) Use File --> Add Files to ...
Problem with this, is that it will only add files to workspace if NO project has been selected.
Problem with THAT, is that once you select a project, there is no way I know of to unselect it.
(2) Use the "+" in the lower-left corner.
Problem with that, it is equivalent to using the pull down menu (#1 above)
(3) Right click in the left pane (in an empty area), and you will see "Add files to "
This is the only right way to do it, as it guarantees that the file will be added to the workspace, and not any selected project.
Try all three methods after selecting an existing project, and you will see what I mean.
Based on my previous experience with XCode, Apple will take about 10 more years to fix this sort of thing.
One would think that adding a project to a Workspace in Xcode would be
intuitive.
Of course not, this is Apple, only usable for certain experts...
1) But when you add a new project it is added within the existing project -
It must be a bug, or is there actually a reason
You did miss the drop down selection list "Add to:" in the last of three dialog pages, the place where the location of the .xcodeproj file is specified. There you can select the Workspace you are currently using. So simply use "File" "New..." "Project...", give it a name and select from templates, and NEVER intuitiveley double click on the directory where to place the project file, but be sure to adjust the selection drop down list to your currently open workspace. Of course this choice is never preselected.
I recently upgraded to Xcode 4.0.1 from the last version of Xcode 3x (not sure which). Install went fine and I can open and view all my old .xcodeproj files without problems. All except one!
The error I get inside Xcode is
"The file "GCSCalculator.xcodeproj" couldn't be opened because you don't have permission to view it. To view or change permissions, select the item in the Finder and choose File > Get info."
Obviously I've checked that and the permissions are exactly the same for all files as the ones in the projects that do open in Xcode. I changed permissions for everyone to ReadWrite just in case, to no avail. I feel I've tried everything obvious and can't seem to find anybody else with the same problem.
Anyone got any ideas about a fix or workaround? Typically it was one of the only projects that was actually completed so its very frustrating!
Thanks.
I ran into the same problem and found that clicking on the project in xcode and then switching the view to standard editor view will let you change all of the project settings. After editing the summary, info, and build settings areas it started working
Click to project-> Build Settings -> Compiler for C/C++/Objective-C -> Default Compiler. Hope it useful :D
I just created a new project from a template and when I try to build the project I get a "Could not read archive" error for each nib file from the compiler. I did some Googling but could not find an explanation or steps to debug. Has anyone run into this error before or can someone explain what it means?
When I try to open the nibs with Interface Builder I get the same error in a pop up.
I'm an idiot. Project name included an ampersand '&' character. Reread the Nimble Kit Coding Examples. and saw the little warning against using special characters "especially '&'" near be bottom of the Xcode compiling error segment in order to figure this one out.
I tried a bunch of things that never worked. I finally solved this issue by simply deleting the item out of XCode (just remove the reference..DO NOT..I REPEAT..DO NOT move it to the trash!!). Then, Add the file back into the project by Selecting "File" - "Add Files" or right clicking some folder in the Folder Navigator view and selecting "Add Files". I then cleaned the project just to be on the safe side and after that I built the project and it worked!