Error when try build a simple Unity app in Xcode

Hy!

I have a problem when try to build app, and test my iPad (running 4.3.5).

this is my output in XCode:

GNU gdb 6.3.50-20050815 (Apple version gdb-1708) (Fri Sep 16 06:56:50 UTC 2011)
Copyright 2004 Free Software Foundation, Inc.
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This GDB was configured as “–host=i386-apple-darwin --target=arm-apple-darwin”.tty /dev/ttys000
target remote-mobile /tmp/.XcodeGDBRemote-32732-35
Switching to remote-macosx protocol
mem 0x1000 0x3fffffff cache
mem 0x40000000 0xffffffff none
mem 0x00000000 0x0fff none
[Switching to process 11779 thread 0x2e03]
[Switching to process 11779 thread 0x2e03]
sharedlibrary apply-load-rules all
dyld: lazy symbol binding failed: Symbol not found: ___udivsi3
Referenced from: /var/mobile/Applications/558060E5-2F39-40E9-8650-63E24F990E70/unity3d.app/unity3d
Expected in: /usr/lib/libSystem.B.dylib
dyld: Symbol not found: ___udivsi3
Referenced from: /var/mobile/Applications/558060E5-2F39-40E9-8650-63E24F990E70/unity3d.app/unity3d
Expected in: /usr/lib/libSystem.B.dylib

warning: Unable to read symbols for /Developer/Platforms/iPhoneOS.platform/DeviceSupport/4.3.5 (8L1)/Symbols/Developer/usr/lib/libXcodeDebuggerSupport.dylib (file not found).
warning: No copy of libXcodeDebuggerSupport.dylib found locally, reading from memory on remote device. This may slow down the debug session.
(gdb)

Sorry for my english, and thanks for the replay.

here is a screenshot: