我下载了一个名为 AePubReader 的开源 epub 阅读器，它工作正常。但是当我尝试在 xcode 4.6 中与我的应用程序集成时，由于 ARC，它显示了很多错误。所以我选择了这些文件并设置了“-fno-objc-arc”标志。但是在那之后它显示像#include <libxml/tree.h> not found![this is the error i got ][1]
$(SDK_DIR)"/usr/include/libxml2 这样的错误我添加了这一行然后这个问题就解决了，但是之后它显示了像 "Apple Mach-O Linker Error" 这样的 "43 Errors" 大多数它们与 xml 文件有关
我的错误信息
架构 i386 的未定义符号：“_htmlParseDoc”，引用自：-[CXHTMLDocument initWithXHTMLString:options:error:] in CXHTMLDocument.o
"_htmlReadMemory"，引用自：-[CXHTMLDocument initWithXHTMLData:encoding:options:error:] in CXHTMLDocument.o "_xmlAddChild"，引用自：-[CXMLDocument(CXMLDocument_CreationExtensions) addChild:] in CXMLDocument_CreationExtensions.o -[CXMLElement(CXMLElement_CreationExtensions) addChild :] 在 CXMLElement_CreationExtensions.o -[CXMLElement(CXMLElement_CreationExtensions) setStringValue:] 在 CXMLElement_CreationExtensions.o "_xmlAddPrevSibling"，引用自：-[CXMLDocument(CXMLDocument_CreationExtensions) insertChild:atIndex:] 在 CXMLDocument_CreationExtensions.o "_xmlCopyNode"，引用自：-[ CXMLNode copyWithZone:] 在 CXMLNode.o
"_xmlDocDumpFormatMemory", referenced from:
-[CXMLDocument description] in CXMLDocument.o
"_xmlDocDumpMemory"，引用自：-[CXMLDocument XMLDataWithOptions:] in CXMLDocument.o "_xmlDocGetRootElement"，引用自：-[CXMLDocument initWithData:encoding:options:error:] in CXMLDocument.o -[CXMLDocument rootElement] in CXMLDocument.o" _xmlDocSetRootElement"，引用自：+[CXMLNode(CXMLNode_CreationExtensions) documentWithRootElement:] in CXMLNode_CreationExtensions.o -[CXHTMLDocument initWithXHTMLString:options:error:] in CXHTMLDocument.o "_xmlFree"，引用自：-[CXMLDocument XMLDataWithOptions:] in CXMLDocument.o -CXMLDocument.o“_xmlFreeDoc”中的[CXMLDocument description]，引用自：-CXMLDocument.o“_xmlFreeNode”中的[CXMLDocument dealloc]，引用自：CXMLNode 中的-[CXMLNode dealloc]。o "_xmlGetCharEncodingName"，引用自：-[CXHTMLDocument initWithXHTMLString:options:error:] in CXHTMLDocument.o "_xmlGetLastError"，引用自：-[CXHTMLDocument initWithXHTMLString:options:error:] in CXHTMLDocument.o -[CXMLDocument initWithXMLString:options:错误：] 在 CXMLDocument.o -[CXMLDocument initWithData:encoding:options:error:] 在 CXMLDocument.o
"_xmlNewDoc", referenced from:
+[CXMLNode(CXMLNode_CreationExtensions) document] in CXMLNode_CreationExtensions.o
+[CXMLNode(CXMLNode_CreationExtensions) documentWithRootElement:] in CXMLNode_CreationExtensions.o
“_xmlNewNode”，引用自：+[CXMLNode(CXMLNode_CreationExtensions) elementWithName:] in CXMLNode_CreationExtensions.o +[CXMLNode(CXMLNode_CreationExtensions) elementWithName:URI:] in CXMLNode_CreationExtensions.o +[CXMLNode(CXMLNode_CreationExtensions) elementWithName:stringValue:] in CXMLNode_CreationExtensions.o "_xmlNewNs"，引用自：+[CXMLNode(CXMLNode_CreationExtensions) elementWithName:URI:] in CXMLNode_CreationExtensions.o "_xmlNewPI"，引用自：+[CXMLNode(CXMLNode_CreationExtensions) processingInstructionWithName:stringValue:] in CXMLNode_CreationExtensions.o "_xmlNewText"，引用自: -[CXMLElement(CXMLElement_CreationExtensions) setStringValue:] in CXMLElement_CreationExtensions.o "_xmlNodeDumpOutput"，引用自：-[CXMLNode XMLStringWithOptions:] in CXMLNode.o "_xmlNodeSetContent"，引用自：-[CXMLNode(CXMLNode_CreationExtensions) setStringValue:] in CXMLNode_CreationExtensions.o "_xmlOutputBufferClose"，引用自：-[CXMLNode XMLStringWithOptions:] in CXMLNode.o "_xmlOutputBufferCreateIO" ，引用自：-[CXMLNode XMLStringWithOptions:] in CXMLNode.o "_xmlOutputBufferFlush"，引用自：-[CXMLNode XMLStringWithOptions:] in CXMLNode.o "_xmlParseDoc"，引用自：-[CXMLDocument initWithXMLString:options:error:] in CXMLDocument .o "_xmlReadMemory"，引用自：-[CXMLDocument initWithData:encoding:options:error:] in CXMLDocument.o "_xmlResetLastError"，引用自：-[CXHTMLDocument initWithXHTMLString:options:error:] in CXHTMLDocument.o -[CXMLDocument initWithXMLString:options:error:] in CXMLDocument.o -[CXMLDocument initWithData:encoding:options:error:] in CXMLDocument.o "_xmlSetNs"，引用自: -[CXMLElement(CXMLElement_CreationExtensions) addNamespace:] in CXMLElement_CreationExtensions.o "_xmlStrcmp"，引用自： -[CXMLElement elementsForName:] in CXMLElement.o -[CXMLElement elementsForLocalName:URI:] in CXMLElement.o -[CXMLElement attributeForName:] in CXMLElement.o -[CXMLElement attributeForLocalName:URI:] in CXMLElement.o -[CXMLElement namespaceForPrefix:] in CXMLElement.o -[CXMLElement resolvePrefixForNamespaceURI:] in CXMLElement.o "_xmlXPathEvalExpression"，引用自：-[CXHTMLDocument initWithXHTMLString:options:error:] in CXHTMLDocument.o -[CXMLNode(CXMLNode_NamespaceExtensions) nodesForXPath:namespaceMappings:error:] in CXMLNode_XPathExtensions.o -[CXMLNode nodesForXPath:error:] in CXMLNode.o "_xmlXPathFreeContext"，引用自： -[CXHTMLDocument initWithXHTMLString:options:error:] in CXHTMLDocument.o -[CXMLNode(CXMLNode_NamespaceExtensions) nodesForXPath:namespaceMappings:error:] in CXMLNode_XPathExtensions.o -[CXMLNode nodesForXPath:error:] in CXMLNode.o "_xmlXPathFreeObject"，引用自： -[CXHTMLDocument initWithXHTMLString:options:error:] 在 CXHTMLDocument.o -[CXMLNode(CXMLNode_NamespaceExtensions) nodesForXPath:namespaceMappings:error:] 在 CXMLNode_XPathExtensions.o -[CXMLNode nodesForXPath:error:] 在 CXMLNode。o “_xmlXPathNewContext”，引用自： -[CXHTMLDocument initWithXHTMLString:options:error:] in CXHTMLDocument.o -[CXMLNode(CXMLNode_NamespaceExtensions) nodesForXPath:namespaceMappings:error:] in CXMLNode_XPathExtensions.o -[CXMLNode nodesForXPath:error:] in CXMLNode。 o “_xmlXPathRegisterNs”，引用自：-[CXMLNode(CXMLNode_NamespaceExtensions) nodesForXPath:namespaceMappings:error:] in CXMLNode_XPathExtensions.o ld：未找到架构 i386 clang 的符号：错误：链接器命令失败，退出代码为 1（使用 - v 查看调用）o -[CXMLNode nodesForXPath:error:] in CXMLNode.o "_xmlXPathRegisterNs"，引用自：-[CXMLNode(CXMLNode_NamespaceExtensions) nodesForXPath:namespaceMappings:error:] in CXMLNode_XPathExtensions.o ld：未找到架构 i386 的符号 clang：错误：链接器命令失败，退出代码为 1（使用 -v 查看调用）o -[CXMLNode nodesForXPath:error:] in CXMLNode.o "_xmlXPathRegisterNs"，引用自：-[CXMLNode(CXMLNode_NamespaceExtensions) nodesForXPath:namespaceMappings:error:] in CXMLNode_XPathExtensions.o ld：未找到架构 i386 的符号 clang：错误：链接器命令失败，退出代码为 1（使用 -v 查看调用）
“_htmlParseDoc”，引用自：
-[CXHTMLDocument initWithXHTMLString:options:error:] in CXHTMLDocument.o
“_htmlReadMemory”，引用自：
-[CXHTMLDocument initWithXHTMLData:encoding:options:error:] in CXHTMLDocument.o
“_xmlAddChild”，引用自：
-[CXMLDocument(CXMLDocument_CreationExtensions) addChild:] in CXMLDocument_CreationExtensions.o
-[CXMLElement(CXMLElement_CreationExtensions) addChild:] in CXMLElement_CreationExtensions.o
-[CXMLElement(CXMLElement_CreationExtensions) setStringValue:] in CXMLElement_CreationExtensions.o
“_xmlAddPrevSibling”，引用自：
-[CXMLDocument(CXMLDocument_CreationExtensions) insertChild:atIndex:] in CXMLDocument_CreationExtensions.o
“_xmlCopyNode”，引用自：
-[CXMLNode copyWithZone:] in CXMLNode.o
“_xmlDocDumpFormatMemory”，引用自：
-[CXMLDocument description] in CXMLDocument.o
“_xmlDocDumpMemory”，引用自：
-[CXMLDocument XMLDataWithOptions:] in CXMLDocument.o
“_xmlDocGetRootElement”，引用自：
-[CXMLDocument initWithData:encoding:options:error:] in CXMLDocument.o
-[CXMLDocument rootElement] in CXMLDocument.o
“_xmlDocSetRootElement”，引用自：
+[CXMLNode(CXMLNode_CreationExtensions) documentWithRootElement:] in CXMLNode_CreationExtensions.o
-[CXHTMLDocument initWithXHTMLString:options:error:] in CXHTMLDocument.o
“_xmlFree”，引用自：
-[CXMLDocument XMLDataWithOptions:] in CXMLDocument.o
-[CXMLDocument description] in CXMLDocument.o
“_xmlFreeDoc”，引用自：
-[CXMLDocument dealloc] in CXMLDocument.o
“_xmlFreeNode”，引用自：
-[CXMLNode dealloc] in CXMLNode.o
“_xmlGetCharEncodingName”，引用自：
-[CXHTMLDocument initWithXHTMLString:options:error:] in CXHTMLDocument.o
“_xmlGetLastError”，引用自：
-[CXHTMLDocument initWithXHTMLString:options:error:] in CXHTMLDocument.o
-[CXMLDocument initWithXMLString:options:error:] in CXMLDocument.o
-[CXMLDocument initWithData:encoding:options:error:] in CXMLDocument.o
“_xmlNewDoc”，引用自：
+[CXMLNode(CXMLNode_CreationExtensions) document] in CXMLNode_CreationExtensions.o
+[CXMLNode(CXMLNode_CreationExtensions) documentWithRootElement:] in CXMLNode_CreationExtensions.o
“_xmlNewNode”，引用自：
+[CXMLNode(CXMLNode_CreationExtensions) elementWithName:] in CXMLNode_CreationExtensions.o
+[CXMLNode(CXMLNode_CreationExtensions) elementWithName:URI:] in CXMLNode_CreationExtensions.o
+[CXMLNode(CXMLNode_CreationExtensions) elementWithName:stringValue:] in CXMLNode_CreationExtensions.o
“_xmlNewNs”，引用自：
+[CXMLNode(CXMLNode_CreationExtensions) elementWithName:URI:] in CXMLNode_CreationExtensions.o
“_xmlNewPI”，引用自：
+[CXMLNode(CXMLNode_CreationExtensions) processingInstructionWithName:stringValue:] in CXMLNode_CreationExtensions.o
“_xmlNewText”，引用自：
-[CXMLElement(CXMLElement_CreationExtensions) setStringValue:] in CXMLElement_CreationExtensions.o
“_xmlNodeDumpOutput”，引用自：
-[CXMLNode XMLStringWithOptions:] in CXMLNode.o
“_xmlNodeSetContent”，引用自：
-[CXMLNode(CXMLNode_CreationExtensions) setStringValue:] in CXMLNode_CreationExtensions.o
“_xmlOutputBufferClose”，引用自：
-[CXMLNode XMLStringWithOptions:] in CXMLNode.o
“_xmlOutputBufferCreateIO”，引用自：
-[CXMLNode XMLStringWithOptions:] in CXMLNode.o
“_xmlOutputBufferFlush”，引用自：
-[CXMLNode XMLStringWithOptions:] in CXMLNode.o
“_xmlParseDoc”，引用自：
-[CXMLDocument initWithXMLString:options:error:] in CXMLDocument.o
“_xmlReadMemory”，引用自：
-[CXMLDocument initWithData:encoding:options:error:] in CXMLDocument.o
“_xmlResetLastError”，引用自：
-[CXHTMLDocument initWithXHTMLString:options:error:] in CXHTMLDocument.o
-[CXMLDocument initWithXMLString:options:error:] in CXMLDocument.o
-[CXMLDocument initWithData:encoding:options:error:] in CXMLDocument.o
“_xmlSetNs”，引用自：
-[CXMLElement(CXMLElement_CreationExtensions) addNamespace:] in CXMLElement_CreationExtensions.o
“_xmlStrcmp”，引用自：
-[CXMLElement elementsForName:] in CXMLElement.o
-[CXMLElement elementsForLocalName:URI:] in CXMLElement.o
-[CXMLElement attributeForName:] in CXMLElement.o
-[CXMLElement attributeForLocalName:URI:] in CXMLElement.o
-[CXMLElement namespaceForPrefix:] in CXMLElement.o
-[CXMLElement resolvePrefixForNamespaceURI:] in CXMLElement.o
“_xmlXPathEvalExpression”，引用自：
-[CXHTMLDocument initWithXHTMLString:options:error:] in CXHTMLDocument.o
-[CXMLNode(CXMLNode_NamespaceExtensions) nodesForXPath:namespaceMappings:error:] in CXMLNode_XPathExtensions.o
-[CXMLNode nodesForXPath:error:] in CXMLNode.o
“_xmlXPathFreeContext”，引用自：
-[CXHTMLDocument initWithXHTMLString:options:error:] in CXHTMLDocument.o
-[CXMLNode(CXMLNode_NamespaceExtensions) nodesForXPath:namespaceMappings:error:] in CXMLNode_XPathExtensions.o
-[CXMLNode nodesForXPath:error:] in CXMLNode.o
“_xmlXPathFreeObject”，引用自：
-[CXHTMLDocument initWithXHTMLString:options:error:] in CXHTMLDocument.o
-[CXMLNode(CXMLNode_NamespaceExtensions) nodesForXPath:namespaceMappings:error:] in CXMLNode_XPathExtensions.o
-[CXMLNode nodesForXPath:error:] in CXMLNode.o
“_xmlXPathNewContext”，引用自：
-[CXHTMLDocument initWithXHTMLString:options:error:] in CXHTMLDocument.o
-[CXMLNode(CXMLNode_NamespaceExtensions) nodesForXPath:namespaceMappings:error:] in CXMLNode_XPathExtensions.o
-[CXMLNode nodesForXPath:error:] in CXMLNode.o
“_xmlXPathRegisterNs”，引用自：
-[CXMLNode(CXMLNode_NamespaceExtensions) nodesForXPath:namespaceMappings:error:] in CXMLNode_XPathExtensions.o
ld：未找到体系结构 i386 的符号
clang：错误：链接器命令失败，退出代码为 1（使用 -v 查看调用）