NoMethodError試圖在Mac

Question

我目前想在Mac OS X上安裝中間人我已經做了這裏所描述的一些初步步驟安裝中間人時：但

http://petertran.com.au/2013/02/23/how-to-install-middleman-mac-on-macosx/

通過主安裝「創業板安裝中間人「休息。這裏有一些輸出。

[..] 
In file included from Variadic.c:35: 
In file included from /usr/include/ffi/ffi.h:58: 
/usr/include/ffi/fficonfig.h:120:9: warning: 'PACKAGE_TARNAME' macro redefined 
#define PACKAGE_TARNAME "libffi" 
     ^
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin12.0/config.h:3:9: note: previous definition is here 
#define PACKAGE_TARNAME "" 
     ^
In file included from Variadic.c:35: 
In file included from /usr/include/ffi/ffi.h:58: 
/usr/include/ffi/fficonfig.h:123:9: warning: 'PACKAGE_VERSION' macro redefined 
#define PACKAGE_VERSION "2.1" 
     ^
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin12.0/config.h:4:9: note: previous definition is here 
#define PACKAGE_VERSION "" 
     ^
5 warnings generated. 
cc -arch i386 -arch x86_64 -pipe -bundle -undefined dynamic_lookup -o ffi_c.bundle AbstractMemory.o ArrayType.o Buffer.o Call.o ClosurePool.o DataConverter.o DynamicLibrary.o ffi.o Function.o FunctionInfo.o LastError.o LongDouble.o MappedType.o MemoryPointer.o MethodHandle.o Platform.o Pointer.o Struct.o StructByReference.o StructByValue.o StructLayout.o Thread.o Type.o Types.o Variadic.o -L. -L/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib -L. -arch i386 -arch x86_64  -lruby -lffi -lpthread -ldl -lobjc 
make install 
/usr/bin/install -c -m 0755 ffi_c.bundle ./.gem.20130626-33730-oxkffm 
ERROR: While executing gem ... (NoMethodError) 
    undefined method `join' for nil:NilClass 

感謝您的任何意見。在Mac OS X編譯器中，我並不擅長使用ruby二進制文件或ffi模塊。所有這些警告（還有一些我沒有引用的警告）對我來說也顯得有點奇怪。

Answer 1

從丹尼斯的提示後，我做了以下解決它：

我卸載的MacPorts並沒有一個乾淨的最新的1.9.x的安裝Ruby，重新安裝MacPorts的（最新版本），並沒有新的中間人的安裝。現在一切都很好。