Xcode Organizer: can not use iPhone (dyld_shared_c

Question

When plugging my iPhone in and starting the Xcode organizer, a yellow circle next to the device show me that "This device is busy or otherwise unusable by Xcode." The Organizer is then processing two files (the second one takes quite a while to finish) and afterwards I get the error message as shown in the screenshot.

I tried to google for that error message ("dyld_shared_cache_extract_dylibs failed") but could not find anything useful. I tried a couple things: repair permissions of my harddrive and run "sudo update_dyld_shared_cache -force". Still getting the error message.

I am running iOS 4.2.1 and Xcode 3.2.5. I have not updated Xcode after updating from 4.2 to 4.2.1 (I think).

The Xcode console is empty but the regular OS X console shows this:

1/22/11 10:56:19 PM     Xcode[4187]     Started symbol copying process
1/22/11 10:56:19 PM     Xcode[4187]     Skipped copying file 1 of 2 ("processed" sentinal found)
1/22/11 10:56:19 PM     Xcode[4187]     Skipped processing file 1 of 2 ("processed" sentinal found)
1/22/11 10:56:19 PM     Xcode[4187]     Skipped copying file 2 of 2 ("copied" sentinal found)
1/22/11 10:56:19 PM     Xcode[4187]     Started processing file 2 of 2
1/22/11 10:56:20 PM     [0x0-0x4d04d].com.apple.Xcode[4187]     arch already exists in fat dylib
1/22/11 10:56:20 PM     [0x0-0x4d04d].com.apple.Xcode[4187]     arch already exists in fat dylib
1/22/11 10:56:20 PM     [0x0-0x4d04d].com.apple.Xcode[4187]     arch already exists in fat dylib
1/22/11 10:56:21 PM     [0x0-0x4d04d].com.apple.Xcode[4187]     arch already exists in fat dylib
1/22/11 10:56:21 PM     [0x0-0x4d04d].com.apple.Xcode[4187]     arch already exists in fat dylib
1/22/11 10:56:22 PM     [0x0-0x4d04d].com.apple.Xcode[4187]     arch already exists in fat dylib
1/22/11 10:56:22 PM     [0x0-0x4d04d].com.apple.Xcode[4187]     arch already exists in fat dylib
1/22/11 10:56:22 PM     [0x0-0x4d04d].com.apple.Xcode[4187]     arch already exists in fat dylib
1/22/11 10:56:23 PM     [0x0-0x4d04d].com.apple.Xcode[4187]     arch already exists in fat dylib
1/22/11 10:56:23 PM     [0x0-0x4d04d].com.apple.Xcode[4187]     arch already exists in fat dylib
1/22/11 10:56:23 PM     [0x0-0x4d04d].com.apple.Xcode[4187]     arch already exists in fat dylib

This error message is then repeated constantly.

Answer 1

After all this time I wanna contribute with one more possible solution for this problem...

1. Open Devices and Simulators
2. Right click on your device and select Unpair Device
3. Wait until your device ask for trust - this is important.. I noted that if I don´t wait this step the error persists
   
4. Click on the plus button down... (+).
   
5. When the next window open, if your iPhone still not appears wait a lit bit.. will appear
6. When your device appear, select it.

One more thing: I changed the version inside /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport from 10.3 to 10.3.3 - that is "exactly" version on my device, so, observe this too.

Believe in me guys... I bought 2 cables, investigate all links in google, bing, yahoo, books, forums... everything and nothing solves... until this.

Answer 2

for xCode 10.1 on High Sierra, you need to create an empty file named :

.processed_dyld_shared_cache_arm64e

and paste it to:

 /Users/{you}/Library/Developer/Xcode/iOS DeviceSupport/{your device version} arm64e/Symbols/System/Library/Caches/com.apple.dyld

make sure that the folder is empty. for me it took couple of time trying and waiting and removing device to get it to work.

Answer 3

With the help of somebody at the Apple Developer Forums I was able to fix the problem by removing the "/Developer/Platforms/iPhoneOS.platform/DeviceSupport/4.2.1 (8C148)" folder. Xcode then re-added the symbols automatically and the error disappeared. For more information see this thread.

Answer 4

I had solved my problem through this:-

https://www.youtube.com/watch?v=m3jST08imY0

to sum up , you could:

1. Go to window-devices and simulators
2. Select the unrunable device and right click, then choose unpair
3. now this is the crucial part, your device will ask for trust automatically, dont click trust
4. Focus back to the device panel, left click the + and add the device, click next, it will ask you to tap the "trust" IN THE PANEL
5. Now you can tap the "trust" in your phone, the panel will say phone added successfully
6. run the app again, problem should be solved.

Ref: Link: https://forums.developer.apple.com/thread/108917

Answer 5

This happened to me after updating to iOS 12.0.1. I deleted the ~/Library/Developer/Xcode/iOS DeviceSupport/ 12.0.1 version folder but that didn't work. After restarting my iPhone it worked. I noticed that Xcode prepared my phone for debugging again, so it must have messed up the first time around.

Answer 6

If you have same issue in Xcode 10 (this worked for me using 10 beta 5 and iOS 12 beta 5) the steps are the same except it was necessary to restart the computer (restarting the iOS device, quitting and relaunching Xcode did not work).

1) Quit Xcode

2) Delete folder located at: ~/Library/Developer/Xcode/iOS DeviceSupport/ iOS version on target device

3) Restart Computer

You will need to either navigate to the user Library via Terminal or show hidden files in finder.

Toggle hidden files with: command + shift + .(dot)