Xcode quit unexpectedly for my project (not in Xcode 4.6.3)

Since this morning I'm not able to open my Project in Xcode 5.

The message received is the following:

Process: Xcode [934] Path:
/Applications/Xcode.app/Contents/MacOS/Xcode Identifier:
com.apple.dt.Xcode Version: 5.0 (3332.22) Build Info:
IDEApplication-3332022000000000~2 Code Type: X86-64 (Native) Parent Process: launchd [123] User ID: 501

Date/Time: 2013-09-12 09:58:32.024 +0200 OS Version: Mac OS X 10.8.4 (12E3067) Report Version: 10

Interval Since Last Report: 4855 sec Crashes Since Last Report: 15 Per-App Interval Since Last Report: 506 sec Per-App Crashes Since Last Report: 15 Anonymous UUID:
F219D8B3-C23D-E7C1-CAC3-FA51A899F6F1

Crashed Thread: 0 Dispatch queue: IDEContainer - uniquing lock

Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x0000000000000000, 0x0000000000000000

Application Specific Information: ProductBuildVersion: 5A1412 [934] stack overflow

Thread 0 Crashed:: Dispatch queue: IDEContainer - uniquing lock 0
libsystem_kernel.dylib 0x00007fff85c94212 __pthread_kill + 10 1 libsystem_c.dylib 0x00007fff907e8704 pthread_kill + 90 2 libsystem_c.dylib 0x00007fff9082cc11 __abort + 159 3 libsystem_c.dylib 0x00007fff9082db77 __stack_chk_fail

• 195 4 com.apple.dt.DVTFoundation 0x000000010196bf7a DVTMacroExpressionByParsingStringAsList + 3943 5
  com.apple.Xcode.DevToolsCore 0x00000001075f4e6d xc_get_parsedValueForMacroName + 380

Thread 1:: Dispatch queue: com.apple.libdispatch-manager 0
libsystem_kernel.dylib 0x00007fff85c94d16 kevent + 10 1
libdispatch.dylib 0x00007fff8d1a9dea _dispatch_mgr_invoke

• 883 2 libdispatch.dylib 0x00007fff8d1a99ee _dispatch_mgr_thread + 54

Thread 2:: com.apple.NSURLConnectionLoader 0 libsystem_kernel.dylib 0x00007fff85c92686 mach_msg_trap + 10 1 libsystem_kernel.dylib
0x00007fff85c91c42 mach_msg + 70 2 com.apple.CoreFoundation
0x00007fff88ed5233 __CFRunLoopServiceMachPort + 195 3
com.apple.CoreFoundation 0x00007fff88eda916 __CFRunLoopRun + 1078 4 com.apple.CoreFoundation 0x00007fff88eda0e2 CFRunLoopRunSpecific + 290 5 com.apple.Foundation
0x00007fff86c5a546 +[NSURLConnection(Loader) _resourceLoadLoop:] + 356 6 com.apple.Foundation 0x00007fff86cb8562 NSThread__main + 1345 7 libsystem_c.dylib 0x00007fff907e7352 _pthread_start + 327 8 libsystem_c.dylib
0x00007fff907d3d81 thread_start + 13

Thread 3: 0 libsystem_kernel.dylib 0x00007fff85c92686 mach_msg_trap + 10 1 libsystem_kernel.dylib
0x00007fff85c91c42 mach_msg + 70 2 com.apple.CoreFoundation
0x00007fff88ed5233 __CFRunLoopServiceMachPort + 195 3
com.apple.CoreFoundation 0x00007fff88eda916 __CFRunLoopRun + 1078 4 com.apple.CoreFoundation 0x00007fff88eda0e2 CFRunLoopRunSpecific + 290 5 com.apple.DTDeviceKitBase
0x000000010b06975a -[DTDKRemoteDeviceDataListener listenerThreadImplementation] + 164 6 com.apple.Foundation
0x00007fff86cb8562 NSThread__main + 1345 7 libsystem_c.dylib
0x00007fff907e7352 _pthread_start + 327 8 libsystem_c.dylib
0x00007fff907d3d81 thread_start + 13

Thread 4:: com.apple.CFSocket.private 0 libsystem_kernel.dylib
0x00007fff85c94322 __select + 10 1 com.apple.CoreFoundation
0x00007fff88f19f46 __CFSocketManager + 1302 2 libsystem_c.dylib
0x00007fff907e7352 _pthread_start + 327 3 libsystem_c.dylib
0x00007fff907d3d81 thread_start + 13

I have no Plug-ins and I've tried to remove the files in .xcodeproj except for project.pbxproj without any result.

Any suggestions?