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

For Xcode 10.1, iOS 13.3 Below helped me.

Copied from https://forums.developer.apple.com/thread/108917

1. go to ~/Library/Developer/Xcode/iOS DeviceSupport/13.2/Symbols/System/Library/Caches/com.apple.dyld

2. create empty file if it is not there - .processed_dyld_shared_cache_arm64e

3. restart xcode and enjoy!