我尝试构建时会出现此错误。我已经更新了我的豆荚,但没有解决。
"Undefined symbols for architecture arm64:
"_xmlXPathFreeObject", referenced from:
lxml::xpath::object::object(_xmlXPathObject*) in FBAudienceNetwork(FNFMediaPresentationDescription.mm.o)
"_xmlReadMemory", referenced from:
lxml::xml::xml(void const*, unsigned long, char const*, char const*, int) in FBAudienceNetwork(FNFMediaPresentationDescription.mm.o)
"___xmlLastError", referenced from:
lxml::xml::xml(void const*, unsigned long, char const*, char const*, int) in FBAudienceNetwork(FNFMediaPresentationDescription.mm.o)
"_xmlXPathCastToBoolean", referenced from:
lxml::xpath::object::boolean() in FBAudienceNetwork(FNFMediaPresentationDescription.mm.o)
"_xmlXPathCastToString", referenced from:
lxml::xpath::object::string() in FBAudienceNetwork(FNFMediaPresentationDescription.mm.o)
"_xmlFreeDoc", referenced from:
lxml::xml::xml(void const*, unsigned long, char const*, char const*, int) in FBAudienceNetwork(FNFMediaPresentationDescription.mm.o)
"_xmlXPathFreeContext", referenced from:
+[FNFMediaPresentationDescription presentationDescriptionWithContentsOfXml:mpdUrl:error:] in FBAudienceNetwork(FNFMediaPresentationDescription.mm.o)
"_xmlXPathCompile", referenced from:
lxml::xpath::expression::expression(char const*) in FBAudienceNetwork(FNFMediaPresentationDescription.mm.o)
"_xmlXPathCastToNumber", referenced from:
lxml::xpath::object::integer() in FBAudienceNetwork(FNFMediaPresentationDescription.mm.o)
"_xmlXPathNewContext", referenced from:
lxml::xpath::xpath(lxml::xml const&, std::__1::function<void (_xmlXPathContext*)>) in FBAudienceNetwork(FNFMediaPresentationDescription.mm.o)
"_xmlXPathCompiledEval", referenced from:
lxml::xpath::evaluate(lxml::xpath::expression const&) in FBAudienceNetwork(FNFMediaPresentationDescription.mm.o)
"_xmlFree", referenced from:
lxml::xpath::object::string() in FBAudienceNetwork(FNFMediaPresentationDescription.mm.o)
"_xmlXPathRegisterNs", referenced from:
+[FNFMediaPresentationDescription presentationDescriptionWithContentsOfXml:mpdUrl:error:] in FBAudienceNetwork(FNFMediaPresentationDescription.mm.o)
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
"
查看错误,似乎您缺少了: libxml2
。
转到xcode-> target->常规 ->链接的框架和库,单击加号并添加libxml2
。