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?
If your problem is not solved then replace the file with your backup file.
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.
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.
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.
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
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.
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.
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
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.
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 "com.apple...." process, then restart the Xcode(turn on connection)
or more easier
- just restart the Mac(with the internet)
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 :-)
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<T>(input:T? = nil) -> T? {
print("Warning line: \(#line) file: \(#file) ")
return input
}
func warnLog<T>(input:T) -> T {
print("Warning line: \(#line) file: \(#file) ")
return input
}
all I needed to do is remove one of the non used overloads
func warnLog<T>(input:T? = nil) -> T? {
print("Warning line: \(#line) file: \(#file) ")
return input
}
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)
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!
