学习Objective-C：编译时“Command / Developer / usr / bin / clang失败，退出代码1”
似乎有很多关于该错误消息的post，但是我找不到与实际代码有关的文章。 我有一个叫做prog1的Xcode 4.0项目，里面是一个main.m文件：
#import <Foundation/Foundation.h> @interface Fraction : NSObject -(void) print; -(void) setNumerator: (int) n; -(void) setDenominator: (int) d; @end @implementation Fraction { int numerator; int denominator; } -(void) print { NSLog(@"The fraction is %i/%i.", numerator, denominator); } -(void) setNumerator: (int) n { numerator = n; } -(void) setDenominator: (int) d { denominator = d; } @end int main (int argc, const char * argv[]) { NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; Fraction *f = [[Fraction alloc] init]; [f setNumerator:5]; [f setDenominator:6]; [f print]; [pool drain]; return 0; }
这是完整的错误信息：
ProcessPCH /Users/rh/Library/Developer/Xcode/DerivedData/prog1-djucagjboveiuwcnycgafzuugucf/Build/PrecompiledHeaders/prog1-Prefix-ethcjsncaxczlsgsnayacjarhmne/prog1-Prefix.pch.pth prog1/prog1-Prefix.pch normal x86_64 objective-c com.apple.compilers.llvm.clang.1_0.compiler cd /Users/rh/Desktop/prog1/prog1 setenv LANG en_US.US-ASCII /Developer/usr/bin/clang -x objective-c-header -arch x86_64 -fmessage-length=0 -fdiagnostics-print-source-range-info -fdiagnostics-show-category=id -fdiagnostics-parseable-fixits -std=gnu99 -Wno-trigraphs -fpascal-strings -O0 -Wreturn-type -Wparentheses -Wswitch -Wno-unused-parameter -Wunused-variable -Wunused-value -Wshorten-64-to-32 -DDEBUG -isysroot /Developer/SDKs/MacOSX10.6.sdk -fasm-blocks -mmacosx-version-min=10.6 -gdwarf-2 -iquote /Users/rh/Library/Developer/Xcode/DerivedData/prog1-djucagjboveiuwcnycgafzuugucf/Build/Intermediates/prog1.build/Debug/prog1.build/prog1-generated-files.hmap -I/Users/rh/Library/Developer/Xcode/DerivedData/prog1-djucagjboveiuwcnycgafzuugucf/Build/Intermediates/prog1.build/Debug/prog1.build/prog1-own-target-headers.hmap -I/Users/rh/Library/Developer/Xcode/DerivedData/prog1-djucagjboveiuwcnycgafzuugucf/Build/Intermediates/prog1.build/Debug/prog1.build/prog1-all-target-headers.hmap -iquote /Users/rh/Library/Developer/Xcode/DerivedData/prog1-djucagjboveiuwcnycgafzuugucf/Build/Intermediates/prog1.build/Debug/prog1.build/prog1-project-headers.hmap -I/Users/rh/Library/Developer/Xcode/DerivedData/prog1-djucagjboveiuwcnycgafzuugucf/Build/Products/Debug/include -I/Users/rh/Library/Developer/Xcode/DerivedData/prog1-djucagjboveiuwcnycgafzuugucf/Build/Intermediates/prog1.build/Debug/prog1.build/DerivedSources/x86_64 -I/Users/rh/Library/Developer/Xcode/DerivedData/prog1-djucagjboveiuwcnycgafzuugucf/Build/Intermediates/prog1.build/Debug/prog1.build/DerivedSources -F/Users/rh/Library/Developer/Xcode/DerivedData/prog1-djucagjboveiuwcnycgafzuugucf/Build/Products/Debug -c /Users/rh/Desktop/prog1/prog1/prog1/prog1-Prefix.pch -o /Users/rh/Library/Developer/Xcode/DerivedData/prog1-djucagjboveiuwcnycgafzuugucf/Build/PrecompiledHeaders/prog1-Prefix-ethcjsncaxczlsgsnayacjarhmne/prog1-Prefix.pch.pth clang: error: no such file or directory: '/Users/rh/Desktop/prog1/prog1/prog1/prog1-Prefix.pch' clang: error: no input files Command /Developer/usr/bin/clang failed with exit code 1
我没有看到任何错误，但是我又开始学习Objective-C。 帮帮我？
只是为了解决这个问题，我会引用蒂尔的评论，他懒得写出答案。 🙂
“这个文件被称为预编译头文件，你可以通过停用在Xcode的编译设置中使用预编译头文件来解决这个问题。