» Build error after upgrading to iPhone SDK 2.2

Internal error occurred while creating dependency graph: ASSERTION FAILURE in /SourceCache/DevToolsBase/DevToolsBase-1148/pbxcore/Target.subproj/XCCodeSignContext.m:458
Details:  Error: failed to locate ResourceRules.plist in '(null)/ResourceRules.plist' or '/Developer/Platforms/(null)/ResourceRules.plist'
Object:   <XCiPhoneOSCodeSignContext>
Method:   +defineCodeSignAuxiliaryFilesInTargetBuildContext:
Thread:   <NSThread: 0x2038c60>{name = (null), num = 6}
Backtrace:
  0  0x007200ab -[PBXTargetBuildContext(DependencyGraphEvents) handleFailureInMethod:object:fileName:lineNumber:messageFormat:arguments:] (in DevToolsCore)
  1  0x0078430c _XCAssertionFailureHandler (in DevToolsCore)
  2  0x0084036d +[XCCodeSignContext defineCodeSignAuxiliaryFilesInTargetBuildContext:] (in DevToolsCore)
  3  0x14baa16e +[XCiPhoneOSCodeSignContext defineCodeSignAuxiliaryFilesInTargetBuildContext:] (in iPhoneRemoteDevice)
  4  0x005d37d0 -[XCProductTypeSpecification computeDependenciesInTargetBuildContext:] (in DevToolsCore)
  5  0x005cf2ce -[XCNativeTargetDGSnapshot computeDependenciesInTargetBuildContext:] (in DevToolsCore)
  6  0x005cc965 -[PBXTargetBuildContext createDependencyGraphWithTargetDGSnapshot:] (in DevToolsCore)
  7  0x005cbb2d -[PBXTargetBuildContext(DependencyGraphEvents) dg_setTargetSnapshot:] (in DevToolsCore)
  8  0x913d5a7d __invoking___ (in CoreFoundation)
  9  0x913d5468 -[NSInvocation invoke] (in CoreFoundation)
 10  0x005cb553 -[PBXTargetBuildContext(DependencyGraphEvents) processDependencyGraphEvents] (in DevToolsCore)
 11  0x913d5a7d __invoking___ (in CoreFoundation)
 12  0x913d5468 -[NSInvocation invoke] (in CoreFoundation)
 13  0x005caec0 -[XCInvocationQueue _processNextInvocationInThreadSlotNumber:] (in DevToolsCore)
 14  0x005cab6f -[XCInvocationQueue _processInvocationsInThreadSlotNumber:] (in DevToolsCore)
 15  0x9408ebad -[NSThread main] (in Foundation)
 16  0x9408e754 __NSThread__main__ (in Foundation)
 17  0x900936f5 _pthread_start (in libSystem.B.dylib)
 18  0x900935b2 thread_start (in libSystem.B.dylib)