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Using Xcode 6 GM seed my code completion has stopped working. It was working the other day. I was trying to get the unwind segue work around to work. I had made an Objc header file and assigned it as a header for a Swift class.
At this point I get code completion with an Objective-c project. But, not with a Swift project.
I have tried restarting Xcode, making a new empty project.
Just go in user->Library->Developer->Xcode->DerivedData and delete the Data of folder(Derived data) and restart Xcode.
This fix from apple dev forums works for me. I have had autocomplete issues with Xcode 6.1/Yosemite.
Quit Xcode.
Restart the computer (this is to clear any in-memory caches).
Delete the contents of the DerivedData folder (~/Library/Developer/Xcode/DerivedData), precisely run, a) cd ~/Library/Developer/Xcode/DerivedData/
b) rm -rf *
(Try this if Steps 1-3 dont really work as it rebuilds the cache later on restart which takes time) Delete the contents of folder ~/Library/Caches/com.apple.dt.Xcode, i.e., a) cd ~/Library/Caches/com.apple.dt.Xcode b) rm -rf *
Now launch Xcode once more…
I experienced a serious breakdown of code completion because I had some 'notes' after the #end statement of my .m file which were as follows:
/*
NSAlertFirstButtonReturn, NSAlertSecondButtonReturn, NSAlertThirdButtonReturn
*/
These lines can appear before the #end statement without destroying code completion.
There's an easier way to delete the Derived Data from within Xcode (no need to open finder or restart):
Xcode Organizer -> Projects -> (Your Project) -> Delete Derived Data
I just recently had this problem. Autocomplete did not work ...and when i typed for example tableView.... it did not give me the different functions available.
I tried the following and it worked for me.
Xcode Organizer -> Projects -> (Your Project) -> Delete Derived Data
delete the file ~/Library/Developer/Xcode/DerivedData/ModuleCache
Restart xcode
Hope this works
Another possible reason why it isn't working is because it's not part of the target membership. To fix this, select the file you're working on. Then, go to the File Inspector and in the Target Membership section, make sure your project is checked.
Try the following - as silly as it may sound:
Change Device to iPhone 6, close Xcode, Reopen Xcode and wait for the indexing to finish.
Go to Xcode menu, then Window -> Organizer, then select Projects. Pick your project and press on delete button beside dervied data
Then restart Xcode
That solution worked with me on Xcode 6.1
If your code completion problem is only with UI classes (e.g. UIImage, UIDevice), then you just need to add "import UIKit".
Swift files will NOT have code completion for UI classes unless there is an "import UIKit".
I had the same issue but under different circumstances,
I have 2 projects in my workspace
Swift framework for iOS and OSX
iOS Project (which uses the swift framework)
My code completion works fine in iOS but it keeps failing in the swift framework. I tried all the about solution and had no luck and was killing my productivity.
Finally i figured out the solution to this problem.
Select the file you are editing (in the framework )
Select the 'utilities' tab on the right
uncheck the Mac target (just keep the target you are working for
currently)
Thats it, this solved my problem.
hope it helps someone who is in this kinda situation.
user/Library/Developer/Xcode/DerivedData Delete all the files shown in this folder. after that go to your project name and clean project then come back to the file where you wanna see suggestions. Type any word and its done.
So all you have to do is make sure, in the file inspector view on the right side, under Target Membership, the first box is checked. I'm not sure why this changes things but I'm sure someone can come along and give a more complete answer.
In my case Some File(s) were deleted in File System but were still referenced in the Project i.e. in Red Color. Just delete those from Project and everything was fine. Code Completion started working.
Also Like to point that all the above answers about Clearing/Deleting Derived Data folder seems to work momentarily but whenever there was a new pull or update the problem started again, so the root cause was the unreferenced/moved/deleted files which show up as RED in the project, they needs to be manually cleared.
Please show me how I can add and implement the libPusher library to my Objective-C iOS project
This is my first post on StackOverflow
I've just started working in Objective-C iOS app development for a company that I co-founded with a couple of colleagues. Our first app needs to have the libPusher library implemented in its porject. Right now, I'm at a crossroads completing the following task of adding and implementing it on Xcode 4.2:
Simply copy libPusher-combined.a and the contents of the headers directory into your Xcode project..
Source: http://github.com/lukeredpath/libPusher/wiki/Adding-libPusher-to-your-project
What does it mean by "copy"ing those files, and where should it be copied to? Can anybody who has experience with libPusher give me specific details as a list and source code on how to execute this so I can understand it better? I would truly appreciated any help, it will get our company up and running for us getting our app functioning and ready for reviewing submission to Apple Developer staff. The link I've provided will tell you more on what I'm talking about, if I need to specify anything I'll create a new post. Thanks!
What "copy" means in this context is that you want to drag and drop the .a (library) file and the header files (all the .h files) into your new Xcode project (to be precise: the file inspector is the list of files along the left side of the workspace window).
To copy anything to an Xcode project, find it in the finder, highlight all of the files you want to copy over (or just take the folder it comes in), then drag everything over the Xcode icon in the dock.
If Xcode is full screen (lion), the icon will kind of blink, then enter Mission Control mode, you then hold the files over the correct project and drop them into the Xcode file tree.
Make sure that your application is checked as a target for those files!!
If Xcode is not full screen, just drag the files or folder into the Xcode file tree and they will be added.
To link to a static library, just navigate to the name of your project>Info>Framworks. Click the plus, then select your framework if it isn't already there.
Assume you have two XCode4 projects
App
Library
Since the Library is active developing, so new headers might be added from time to time, code might be changed from time to time.
Even I can drag the Library XCode project into the App XCode project, I still need to copy the headers manually.
Are there any easy way, rather than copy the Library into the App library folder, I can develope the codes on two projects at the same time, e.g. debugging.
A few recommendations after beating my head against a wall:
Try creating an Xcode 4 workspace containing the 2 projects. It seems to work better than having one be a sub-project of the other.
Instead of copying the headers, add their path to the "header search paths", then select "always search user paths" (both in build settings).
To get started: Xcode 4 workspace docs
I have just upgraded to the new Xcode 4 and the code is not colored has it ought to be.
For instance, the string NSString is not colored in my custom code, but when I switch to Apple's code (NSString.h for example) everything is well colored.
How can I fix that?
It's a known bug with the latest XCode. This happens with some projects which are migrated from XCode 3.X to the new version. For some people it seems to help to go to the organizer, and in the project tab delete the derived data for the project where code sense does not work correctly.
If you have a small project, it might also help to create a new project in XCode 4 and import the files from the XCode 3 project.
Update: XCode 4.0.1 made the situation a bit better, at least in some of my projects I have syntax coloring and code sense back. But it's still far from fixed.
Update 2: XCode 4.0.2 did not change much. It seems that the problem is related to subprojects, specifically static libraries. According to comments of this blog post some people were successful by changing header search paths from relative to absolute paths, e.g. instead of Foo/Bar use $(SOURCE_ROOT)/Foo/Bar. This together with switching all projects to XCode 3.1 format and to use LLVM 2.0 fixed a lot for me as well. It's not perfect yet, but usable.
Update 3: After converting the sub projects to independent projects and putting them in a workspace (aka the XCode 4 way) I have now full syntax highlighting and code completion back.
My current environment is now a XCode 4 workspace with each projects being 3.1 compatible (as opposed to the default which is 3.2), LLVM GCC 4.2 (system default) and the header search paths are still absolute (using $(SOURCE_ROOT)/.../).
I used undefined Macro, But those macros defined in Preprocessor Macros in build settings. So the xcode4 didn't generate any error for that undefined macro.
Steps taken to resolve.
Removed undefined macros wherever I used those undefined macros.
Removed duplicate definitions of Marcos.
Removed duplicate Resources. (I'd added same (many Thumbs.db files) files into the project.)
Clean & Build.
if still you are not getting the color then, please relocate your project to some different location, I changed to my Desktop location.
After these steps I got the color in my eyes.
But its very bad issue. I sucks lot of valuable time. I think these steps may help you.
Thanks.
I had the same problem with mine. Its a cocos2d game with box and chipmunk. It was a hell of a mess getting the project to recognize and find the user search paths in the first place so I wasn't about to mess with those.
What I wanted to point out is that I DO HAVE recursive paths and I do have relative paths and I still got the issue. It happened when I added a new version of a 3rd party SDK I was using. It was Testflight 083 which I updagraded to 1.0. I erased my old version but only removed references. Then I manually deleted it from finder. Imported the new SDKv1 folder and readded it to my project and removed the old SDK0 folder path leaving only the newly added SDK1 folder path. For some reason I noticed that even though in v083 I had used a #import in my Prefix.pch file, it still wasn't recognizing a call to a method from AppDelegate. Which means the #import in Prefix.pch for some reason was not working. I had to add #import to my AppDelegate file individually. This gave me duplicate #imports as Jeeva said above. That sounded an alarm in my head.
So the solution was to go and effectively remove the duplicate #import in Prefix.pch therefore only leaving the one in AppDelegate. It reindexed and CodeSense works again. Thanks Jeeva!
This issue was driving me insane, and I had given up hope of fixing it without some ugly hack on XCode's configuration. I passed through this very forum thread a stack overflow of times. Then one day, I happened to accidentally fix it. I'm not sure if you need all these steps, but I've found this a sure-fire way to fix XCode's indexing issues:
Clean your project (Command-shift-K)
Open organizer, close your project.
Under the "Projects" tab in organizer, remove the derived data for the project you want to reset.
Quit XCode
In the terminal, run:
sudo mdutil -a -i on
This seems to reset spotlight indexing (I don't know much about it because I don't use spotlight).
When the command finishes, Spotlight will have to re-index. Look up to see a little dot in the magnifying glass for your spotlight's icon. When the dot leaves, spotlight has re-indexed. You can check the progress by opening spotlight.
Re-open XCode, and wait for it to re-index all your files.
Build the project.
On build success, you should now have appropriate syntax highlighting again. I hope you guys find this little discovery as useful as I did :)
EDIT:
I should probably add that the syntax highlighting sometimes seems to re-break when the debugger hangs the simulator during app launch. I just try to avoid this by being more careful about letting the process hang.
EDIT2: (sorry first contribution)
Works on XCode 4.6 and 4.6.2.
I am getting following errors.
libxml/tree.h no such file or directory
I have already added libxml2.dylib to my project, however I am getting this type of trouble.
Please help me.
Follow the directions here, under "Setting up your project file."
Setting up your project file
You need to add libxml2.dylib to your project (don't put it in the Frameworks section). On the Mac,
you'll find it at /usr/lib/libxml2.dylib and for the iPhone, you'll
want the
/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.0.sdk/usr/lib/libxml2.dylib
version.
Since libxml2 is a .dylib (not a nice friendly .framework) we still
have one more thing to do. Go to the Project build settings
(Project->Edit Project Settings->Build) and find the "Search Paths".
In "Header Search Paths" add the following path:
$(SDKROOT)/usr/include/libxml2
Also see the OP's answer.
Adding libxml2 in Xcode 4.3 / 5 / 6
Adding libxml2 is a big, fat, finicky pain in the ass. If you're going to do it, do it before you get too far in building your project.
You need to add it in two ways:
1. Target settings
Click on your target (not your project) and select Build Phases.
Click on the reveal triangle titled Link Binary With Libraries. Click on the + to add a library.
Scroll to the bottom of the list and select libxml2.dylib. That adds the libxml2 library to your project.
2. Project settings
Now you have to tell your project where to look for it three more times.
Select the Build Settings tab.
Scroll down to the Linking section.
Under your projects columns double click on the Other Linker Flags row.
Click the + and add -lxml2 to the list.
Still more.
In the same tab, scroll down to the Search Paths section.
Under your projects column in the Framework Search Paths row add /usr/lib/libxml2.dylib.
In the Header Search Paths and the User Header Search Paths row add $(SDKROOT)/usr/include/libxml2.
In those last two cases make sure that path is entered in Debug and Release.
3. Clean
Under the Product Menu select Clean.
Then, if I were you (and lets face it, I probably am) I'd quit Xcode and walk away. When you come back and launch you should be good to go.
For Xcode 6, I had to do the following:
1) add the "libxml2.dylib" library to my project's TARGET (Build Phases -> Link Binary With Libraries)
2) add "$(SDKROOT)/usr/include/libxml2" to the Header Search Paths on the TARGET (Build Settings -> Header Search Paths)
After this, the target should build successfully.
You also need to add /usr/include/libxml2 to your include path.
Form the link of #Matt Ball,
I found following helpful to me.
You need to add libxml2.dylib to your project (don't put it in the Frameworks section). On the Mac, you'll find it at /usr/lib/libxml2.dylib and for the iPhone, you'll want the /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS2.0.sdk/usr/lib/libxml2.dylib version.
Since libxml2 is a .dylib (not a nice friendly .framework) we still have one more thing to do. Go to the Project build settings (Project->Edit Project Settings->Build) and find the "Search Paths". In "Header Search Paths" add the following path on the Mac:
/usr/include/libxml2
Ray Wenderlich has a blog post about using gdata that solves this problem. Basically these simple steps:
In XCode, click Project\Edit Project Settings and make sure “All Configurations” are checked.
Find the Search Paths\Header Search Paths setting and add /usr/include/libxml2 to the list.
Finally, find the Linking\Other Linker Flags section and add -lxml2 to the list.
original post: read and write xml documents with gdataxml
I found the same, I had to add $(SDKROOT)/usr/include/libxml2 for the latest Xcode (4.3.x). ALSO, what kept me circling around for hours is the fact that I was modifying the "TARGET" and not the "PROJECT" (the new UI of Xcode is so intricate that its easy to overlook this). You need to modify the PROJECT!
Another solution. do all the steps in header search path etc. and make sure your selected configuration in project in Project settings is the correct one. When you double click on project build settings ,you may be changing in Distribution settings, But you are trying to add header search path in "Debug" settings. So make sure you are in correct settings. or choose all settings
I found that with xCode 4.3.2 I had to enter
$(SDKROOT)/usr/include/libxml2
into the Header Search field rather than simply
/usr/include/libxml2
As of Mavericks (OS X 10.9) the /usr/include directory is gone. Half of the answers here are obsolete, as the application will not compile until you sort out the include directory.
I solved the problem creating a symbolic link to MacOSX SDK in terminal, using the following command:
sudo ln -s /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include /usr/include
The application now compiles again.
I'm not sure what the difference is but add the include path to the project as well as the target.
On Mountain Lion I was facing same issue, which was resolved by adding /usr/include/libxml2 to include paths with flag "recursive", use this if all above is not fruitful.
I had this problem when I reopened a project (which was developed on XCode 3.something on Leopard) after upgrading to Snow Leopard and XCode 3.2. Curious enough, it only affected some kinds of builds (emulator builds went fine, device ones gave me the error). And I have libxml2 at /usr/include, and it indeed contains libxml/tree.h.
Even the magic "Clean" did not work, but "Empty Caches..." under the "XCode" menu (between the Apple logo and File) did the trick (was that menu there in previous versions?). Beats me the reason, but after a clean there were no more complaints regarding libxml/tree.h
Also select "Always Search User Paths" to YES. In XCode 4.3.3 its by default NO
Please follow the following steps
Adding libxml2
libxml2.dylib can be found on your mac machin at /usr/lib/libxml2.dylib
Change "Header Search Paths"
Click on [Project Name] (in left panel) -> Project -> Build Settings -> Select All (default is Basic)
Type Header Search Paths in search box
Double click on Header Search Paths -> + -> "$(SDKROOT)/usr/include/libxml2"
Add -lxml2 to "Other linker flag"
Search for "Other Linker Flags" as search in step 2
click on the "Other Linker Flags" row. Click the "+" and add "-lxml2" to the list.
Change your project type to ARC -> No i.e Automatic Reference Counting to No
You can search ARC as per in step 2
Xcode 4.5
I have used The CW's solution entirely.
The only exception is that $(SDKROOT)/usr/include/libxml2 didn't work for me, and I had to add "$(SDK_DIR)"/usr/include/libxml2 to my Projects Header Search Paths and User Header Search Paths.
After that project builds successfully.
EDIT: I have Google GData project inside my project (called MyProject) (my project uses). GData requires libxml. To build project MyProject successfully, I add "$(SDK_DIR)"/usr/include/libxml2 to Header Search Paths of MyProject and no to Header Search Paths of GData . If I didnt add it to MyProject, project did not build).
I found this visual tutorial useful.
Blockquote
Adding libxml2 in Xcode 4.3.x
Adding libxml2 is a big, fat, finicky pain in the ass. If you're going to do it do it before you get too far in building your project.
Here's how.
Target settings
Click on your target (not your project) and select "Build Phases". Click on the reveal triangle titled "Link Binary With Libraries". Click on the "+" to add a library. Scroll to the bottom of the list and select "libxml2.dylib". That adds the libxml2 library 2 your project… but wait.
Project settings
Now you have to tell your project where to look for it three more times.
Select the "Build Settings tab". Scroll down to the "Linking" section. Under your project's columns double click on the "Other Linker Flags" row. Click the "+" and add "-lxml2" to the list.
Still more.
In the same tab, scroll down to the "Search Paths" section. Under your project's column in the "Framework Search Paths" row add "/usr/lib/libxml2.dylib".
In the "Header Search Paths" AND the "User Header Search Paths" row add "$(SDKROOT)/usr/include/libxml2". In those last two cases make sure that path is entered in Debug AND Release.
Then. Under the "Product" Menu select "Clean".
This is working and for Xcode5 too! Thank you!
Don't put libxml2.dylib under frameworks folder put it under root just below the root(Top left blue icon )
Then Click on the Project (TOP Left blue icon) ,GO to Build Settings,in the search box type "Header Search Paths" and then add the this "$(SDKROOT)/usr/include/libxml2"
This code resolve my issue hope it will help you fix this
#Aqib Mumtaz - I got it working by following the instructions in Parris' note above entitled "Adding libxml2 in Xcode 4.3 / 5 / 6". The step in using a Framework Search Path does not work and the compiler complains. Big kudos to that fella anyway!
I am using Xcode 6.2b3
Regardless of the version of Xcode you are using, it is buggy. Don't always assume that compile errors are real. There are many times when it does not follow header search paths and includes clearly listed are not found. Worse, the errors that result tend to point you in different directions so you waste a lot of time dinking around with distractions. With that said...
Recommend baby steps by starting with this exactly...:
create a single window Mac OS X Cocoa project called "Bench Test"
add XpathQuery into your project source directory directly in the Finder
click on the tiny folder icon under the project window's red close button
drag XpathQuery (folder if you contained it) into the project assets on the left of the project window's display
drag /Applications/Xcode/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk/usr/lib/libxml2.2.dylib into your project assets, at the bottom. This will add it into your "Build Phases" -> "Link Binary With Libraries" the easy way
click on the "Bench Test" project icon in the project assets column, top of the left
search for "Other Linker Flags" under "Build Settings"
add "-lxml2" (sans "") to "Other Linker Flags" under the "Bench Test" project icon column
search for "header search" under "Build Settings"
add "$(SDKROOT)/usr/include/libxml2" (sans "") to "Header Search Paths" under the "Bench Test" project icon column
add "$(SDKROOT)/usr/include/libxml2" (sans "") to "User Header Search Paths" under the "Bench Test" project icon column
Notes:
Mine would not work until I added that search path to both "Header Search Paths" and "User Header Search Paths".
To get to the libxml2.2.dylib in the finder, you will need to right click your Xcode icon and select "Show Package Contacts" (editorial: what a hack.. cramming all that garbage into the app)
Be prepared to change the linked libxml2.2.dylib. The one inside Xcode is intentionally used to ensure that Xcode gets something it knows about and in theory was tested. You may want to use the dylib in the system later (read up in this thread)
As I am using Xcode 6.2b3, I may have a newer libxml2.2.dylib. Yours could be named slightly different. Just search the folder for something that starts with "libxml" and ends with ".dylib" and that should be it. There may also be an alias like "libxml2.dylib". Don't use that right away as resolving an alias adds another variable into the Xcode "what could have bugs" equation.
For sanity sake, I make aliases of the external libraries, rename them to indicate which one they are, and keep them at the same level as the project file in the Finder. If they change location, change name, etc, the alias will have in it's Get Info, the original file's full path for later detective work to get the project compiling and linking again. (symlinks break too easy and are not natural to the Mac)
Last thing, and very important, see http://www.cocoawithlove.com/2008/10/using-libxml2-for-parsing-and-xpath.html where you can download XpathQuery and get some more goodness.
hope this helps.
If you happen to be developing something for Veterans, oh say an iPhone / iPad or Mac app, and are working against something called "MDWS" or "VIA" which are SOAP based interfaces to the medical record system... please contact me
I solved in three steps inXcode 8.0 + Unit Test Project
1) I added libxml file to the Build Phases.follow this link
2) I added Other Linker Flags as -ObjC (For both project and test project targets)
3) I setup Header Search Path as "${SDKROOT}/usr/include/libxml2" (Don't forget double quote in either side) (For both project and test project targets)
One of them will solve the issue. If not you have to apply all three of the above.
i tought i added wrongly, then i realize the problem is it not support arc, so check the support one here, life saver -> http://www.michaelbabiy.com/arc-compliant-gdataxml-library/