The error:
Error spawning child process: Permission denied
pops up in the console about one in every five or ten times that I try to run my project in the Xcode simulator. When this happens the project does not run.
Rerunning the project (Cmd-R again) usually works.
Can't find any mention of the error on Google, anyone experiencing this?
Edit 2014-07-04, getting this error too.
Running XCode 5.1
Cheers,
Paul
I had the same problem and after some Product -> Clean the message disappeared. So you should try that way!
I've had to do a clean build of the project and restart both the Xcode 5.1 and the iOS Simulator to solve the problem.
I had the same error. I removed a few lines of commented code, and cleaned the build, before compiling it again. Sounds crazy, but it worked.
Are you having any LLDB errors along with the "Error spawning child process" one?
I'd same issue with xcode5.1.1. Resolved by following steps.
Clean build
Change simulator selection to iPhone Retina 4 and Run , then back
to iPhone 3.5 screen, it works.
Related
Couldn't find proper solution for this.
"ERROR: Each TDDistiller instance can be distilled only one time."
while compiling the project
i've just restart my mac and then my project worked fine for some time. and after that it gives the same error. Anyone got proper solution for this? that I don't have to restart my mac several times.
Clean DerivedData, close Simulator and restart Xcode. Not optimal solution, but better than restarting your Mac.
Reinstall Xcode solve my problem , Or update it
I am using Xcode 9 and I am trying to do Refactoring on my Swift based file but every time I am getting below error:
Refactoring engine ranges didn't match initial ranges
Why isn't it matching the initial range?
Workaround: Restart Xcode.
This has not been resolved yet as of January 2018 (Xcode 9.2).
Build your project (Command ⌘ + B) and it will fix the error. After doing it, I could rename my file successfully.
I have Xcode's project created using Xcode8 long time ago. For some reason I have to upgrade to Xcode9 (9.4.1 exactly). Then I experienced that error only on that old project, not the new one created using Xcode9.
So i think that error related to project issue. So I decided to compare the settings between old and new one. There are some differences, and after several tries, by changing Optimization Level for Debug solved refactor issue.
In project editor, select your Target, Build Settings
Set Optimization Level (Debug) = No optimization [-Onone]
Delete DerivedData folder related to your project in /Users/YourMacUsername/Library/Developer/Xcode/DerivedData
Clean project shiftcommandk.
Build project commandb.
Update For some reason, it's not happening for me anymore. I noticed also whenever I don't let indexing finishes before trying to start doing a refactor or tap on refactor many times, still see the error, but not permanent anymore.
I asked an engineer at WWDC 2018 about this issue. This issue was happening for me in only one project in my workspace. Other projects in the same workspace works fine. At the moment, there's no solution to this issue. If you want to help Apple to fix this, you can close your Xcode and run following command in terminal:
SOURCEKIT_SERVICE_LOG=3 /Applications/Xcode.app/Contents/MacOS/Xcode 2>&1 | tee /tmp/sk-log.txt
And then try to reproduce the issue and send them the log file (/tmp/sk-log.txt) so they can narrow it down and hopefully fix it in future Xcode versions.
Notice This is project related issue and won't be fixed with OS updates, Xcode updates, or any number of restarting applications, at least the one that I'm having.
I have the same issue in Xcode 10.3.
Refactoring didn't work when I right clicked → refactor → rename on the class name in the class definition. However it did work when I did the same somewhere in code where I use that class.
Product -> Clean Build Folder -> Quit Xcode -> Reopen Project -> Build
I update to Xcode 10 and finally refactoring now it works again after a year without refactoring
I am on Mac M1 and using Xcode Version 12.5 beta 3.
I was facing the same issue when trying to rename ViewController.
Before renaming it, I moved it to a new group, and my code was in a running state. Not sure if that was the reason for the issue.
But I restarted the Xcode and the issue was resolved for me.
I was experiencing the exact same issue. It turned out that I had my build configuration set to Release mode. Changing it to Debug, cleaning build folder and recompiling fixed the issue for me.
Remove DerivedData
This worked for me for this error and other kind of refactoring errors.
Close Xcode
Remove DerivedData:
rm -rf ~/Library/Developer/Xcode/DerivedData
I experienced this on a Mac M1, using Xcode Version 14.1 (14B47b).
This helped:
Clean project: shift-command-k.
Build project: command-b.
I have been working on my project with xcode 5 for the past few days. I've switched over to Xcode 4 because I wanted to make sure everything in my project would be compatible with IOS 6.
After reverting the XIBs, I get the following error when I attempt to run my project.
Every other time I run, my app crashes, but every other time it does not... Weird.
target specifies product type 'com.apple.product-type.bundle.unit-test', but there's no such product type for the 'iphonesimulator' platform
How can I go about solving this issue?
Thank you for your time.
I am using Xcode4.6 run my app show the Error!
but!
I click xode product ---> clean !
solve the error!
With previous version of xcode works perfectly for my cocos2d and box2d project
but today i upgrad it(to xcode 4.5.2) because my iphone device was having os version issue.
and then all of my upgrade progress finished
i have some trouble with in it
when i run the project in new xcode, it started complain me that i have no Default.png
but i'am already have defalult.png in my project
so why this happening ? and how can i figure it out...
i've already clean and rebuild
and also delete default.png and recopy from original arsenal
but same problem occurred
(as you guess .. i'm not good at explain my opinion in english.. sorry for that.. )
I expect you mean this:
Missing - "Default-568h#2x.png" launch image"
That is the startup image for the iPhone 5 screen. If you click on the warning it will create one for you.
I've been working on a project in Xcode 3.2.5 and today I tried migrating it up to Xcode 4.0. It compiles just fine; I can navigate to and execute the .app without a hitch (as expected). The only thing that is screwy is the fact that Xcode cannot launch the application, and displays the following error when it tries:
"Error starting executable. No executable file specified. Use the "file" or "exec-file" command" (image not available)
I've scoured the Project and Xcode settings and have been googling for half the day, but all I can find are dead ends and people bashing other people about breaking Apple NDA. FYI Xcode 4 has been released, and is no longer under NDA.
Should I just start a new project and copy in my source? Sounds wrong to me, but brute force works when brute force works.
Thanks in advance
At a guess, the schemes it set up for you based on your v3 targets and build settings might not be quite right. From the schemes menu, choose to edit the current scheme, then select the Run action from the list and make sure the appropriate exectuable is selected.
I ran into the same issue this question came up so I spent my time identifying the issue, reproducing the issue, narrowing it down and explaining as best I could how to not make it happen - as well as the general frustration that comes with an issue like this (it hit me on 2 different versions of Xcode in 2 weeks).
If you're going to delete my post then at least take the time to try and answer the question as I had tried to do.
Now, on to the reply that actually tells how this issue may be created and how to avoid that.
I JUST had this happen creating an app for iOS. Why? I renamed my target executable.
Just tested this by checking out a new copy of the source and rebuilding.
The app ran fine on my device.
Went in to Xcode 4.2, renamed the target. Ran the app. "Error starting Executable..."
I changed the filename back. Same error.
Cleaned and ran the app again and it launched.
Renamed the app, cleaned and ran it again. Not so much luck.
Don't rename your app by renaming the target.
This is such a stupid limitation. Apple lets you rename your target app, but by doing so, this prevents your app from launching on the device.
EDIT: I haven't checked in any code, but now I can't check out and build and run any app without this happening. How do you get the device/xCode out of this state once you've gotten it in to it?
Even the app now crashes on launch at int retVal = UIApplicationMain(argc, argv, nil, nil);
This is in Xcode 4.2 on Snow Leopard, but I got into the same state with Xcode 3 on another Machine last week.
Edit 2: Rebooted the device, rebooted my Mac. Built and ran in the simulator first, then on the Gen4 iPod touch. It works.
I had this issue when migrating a project from Xcode 4 to 4.1, and it ended up being due to the Target's "Product Name" being different in the debug and release configurations. A holdover from when I changed the name of the product many versions ago. So check that...
I've downgraded Xcode from 4.2 to 4.1 only to encounter an error at build and run on device: "Error starting executable. Don't know how to run ...". I've cleaned the project (Xcode > Project > Clean) and cleaned the build folder (Xcode > Project > (hold option key) Clean Build Folder). After that I had to build again and it built okay on iPod touch 4g running iOS 5.
Well, it sure sounds like a whole family of bugs behind that error message!
I got the error after loading up an Xcode 3 project under 4.2.x for the first time.
None of the above tips worked for me, however what I eventually did was switching from GDB to LLDB.
That fixed it.
It looked like the new path to the executable wasn't properly recognized by GDB (i.e. once locally at PROJECT/build/Debug/... in Xcode3 but now in the usual temp. folder location with Xcode 4 it was still looking for the executable in the build folder relative to the project sources)
I duplicated the target and rename the copied on to different name, I got this error message. What I did is to clean the project, exit Xcode, restart the Xcode, then it can run on my device.