问题
I am getting following error when I am running my application on iPod touch (version 4.2.1). My app crashes after a point:
Unable to read symbols for /Developer/Platforms/iPhoneOS.platform/DeviceSupport/4.2.1 (8C148)/Symbols/Developer/usr/lib/libXcodeDebuggerSupport.dylib (file not found).
My XCODE version is 3.2.6 with IOS 4.3 and my deployment target version is 4.2.
Any reason why this is so happening?
回答1:
Sometimes I have similar problems, and what works for me is Clean and Build the target again (without any changes in code!). Strange, but sometimes I had to do it more than once.
回答2:
Just delete that folder (/Developer/Platforms/iPhoneOS.platform/DeviceSupport/4.2.1), connect your device again, go to the XCode Organizer and it will ask you to collect the symbols from the device. After a couple minutes it will be done collecting and processing the symbols off the device, and you should be good to go.
You can also see this thread for more solutions if this doesn't work.
回答3:
For some reason just got this in XCODE 4.2. Had to go to
TARGET / BUILD SETTINGS / ALL / SEARCH PATHS / Library Search Paths
And remove the line that somehow had similar entry in the line. Removed it and all is ok
来源：https://stackoverflow.com/questions/4838949/unable-to-read-symbols-for-developer-platforms-iphoneos-platform-devicesupport