clang: error: no existe tal archivo o directorio: '/Users/waterskiingmithrill/Development/iPhone/Event/Event_Prefix.pch'

He estropeado mi proyecto de iPhone. corrísvn update, habiendo jugueteado con el repositorio hace meses. Muchos cambios desde entonces, hacen que la recuperación de un punto antiguo sea casi imposible.

Cuando intento construir el proyecto ahora obtengo:

ProcessPCH /Users/waterskiingmithrill/Library/Developer/Xcode/DerivedData/Event-cqyicuekijryjpbuuucigvdrxrdc/Build/Intermediates/PrecompiledHeaders/Event_Prefix-brpgiiwwokyynuheloumlvxlmurs/Event_Prefix.pch.pth Event_Prefix.pch normal i386 objective-c com.apple.compilers.llvm.clang.1_0.compiler
cd /Users/waterskiingmithrill/Development/iPhone/Event
setenv LANG en_US.US-ASCII
setenv PATH "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -x objective-c-header -arch i386 -fmessage-length=0 -std=c99 -Wno-trigraphs -fpascal-strings -O0 -Wno-missing-field-initializers -Wno-missing-prototypes -Wreturn-type -Wno-implicit-atomic-properties -Wformat -Wno-missing-braces -Wparentheses -Wswitch -Wno-unused-function -Wno-unused-label -Wno-unused-parameter -Wunused-variable -Wunused-value -Wno-uninitialized -Wno-unknown-pragmas -Wno-shadow -Wno-four-char-constants -Wno-sign-compare -Wno-shorten-64-to-32 -Wpointer-sign -Wno-newline-eof -Wno-selector -Wno-strict-selector-match -Wno-undeclared-selector -Wno-deprecated-implementations -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk -fexceptions -fasm-blocks -Wprotocol -Wdeprecated-declarations -mmacosx-version-min=10.6 -g -fvisibility=hidden -Wno-conversion -Wno-sign-conversion -fobjc-abi-version=2 -fobjc-legacy-dispatch "-DIBOutlet=__attribute__((iboutlet))" "-DIBOutletCollection(ClassName)=__attribute__((iboutletcollection(ClassName)))" "-DIBAction=void)__attribute__((ibaction)" -D__IPHONE_OS_VERSION_MIN_REQUIRED=40000 -iquote "/Users/waterskiingmithrill/Library/Developer/Xcode/DerivedData/Event-cqyicuekijryjpbuuucigvdrxrdc/Build/Intermediates/Event.build/Debug-iphonesimulator/HatFair.build/Hat Fair-generated-files.hmap" "-I/Users/waterskiingmithrill/Library/Developer/Xcode/DerivedData/Event-cqyicuekijryjpbuuucigvdrxrdc/Build/Intermediates/Event.build/Debug-iphonesimulator/HatFair.build/Hat Fair-own-target-headers.hmap" "-I/Users/waterskiingmithrill/Library/Developer/Xcode/DerivedData/Event-cqyicuekijryjpbuuucigvdrxrdc/Build/Intermediates/Event.build/Debug-iphonesimulator/HatFair.build/Hat Fair-all-target-headers.hmap" -iquote "/Users/waterskiingmithrill/Library/Developer/Xcode/DerivedData/Event-cqyicuekijryjpbuuucigvdrxrdc/Build/Intermediates/Event.build/Debug-iphonesimulator/HatFair.build/Hat Fair-project-headers.hmap" -I/Users/waterskiingmithrill/Library/Developer/Xcode/DerivedData/Event-cqyicuekijryjpbuuucigvdrxrdc/Build/Products/Debug-iphonesimulator/include -I/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk/usr/include/libxml2 -I/Users/waterskiingmithrill/Library/Developer/Xcode/DerivedData/Event-cqyicuekijryjpbuuucigvdrxrdc/Build/Intermediates/Event.build/Debug-iphonesimulator/HatFair.build/DerivedSources/i386 -I/Users/waterskiingmithrill/Library/Developer/Xcode/DerivedData/Event-cqyicuekijryjpbuuucigvdrxrdc/Build/Intermediates/Event.build/Debug-iphonesimulator/HatFair.build/DerivedSources -F/Users/waterskiingmithrill/Library/Developer/Xcode/DerivedData/Event-cqyicuekijryjpbuuucigvdrxrdc/Build/Products/Debug-iphonesimulator -DNS_BLOCK_ASSERTIONS=1 --serialize-diagnostics /Users/waterskiingmithrill/Library/Developer/Xcode/DerivedData/Event-cqyicuekijryjpbuuucigvdrxrdc/Build/Intermediates/PrecompiledHeaders/Event_Prefix-brpgiiwwokyynuheloumlvxlmurs/Event_Prefix.pch.dia -c /Users/waterskiingmithrill/Development/iPhone/Event/Event_Prefix.pch -o /Users/waterskiingmithrill/Library/Developer/Xcode/DerivedData/Event-cqyicuekijryjpbuuucigvdrxrdc/Build/Intermediates/PrecompiledHeaders/Event_Prefix-brpgiiwwokyynuheloumlvxlmurs/Event_Prefix.pch.pth -MMD -MT dependencies -MF /Users/waterskiingmithrill/Library/Developer/Xcode/DerivedData/Event-cqyicuekijryjpbuuucigvdrxrdc/Build/Intermediates/PrecompiledHeaders/Event_Prefix-brpgiiwwokyynuheloumlvxlmurs/Event_Prefix.pch.d

clang: error: no such file or directory: '/Users/waterskiingmithrill/Development/iPhone/Event/Event_Prefix.pch'
clang: error: no input files
Command /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang failed with exit code 1

Y no tengo idea de por quéEvent_Prefix.pch no está allí para ser criticado. (Ni siquiera sé qué es el chisme) Cualquier ayuda, sugerencias sobre cómo depurar, consejos sobre cómo solucionarlo, muy apreciado.

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