我尝试创建发送电子邮件的应用程序我使用了SKPSMTPMessage，NSStream+SKPSMTPExtensions，NSData+Base64Additions，HSK_CFUtilities，Base64Transcoder等类，但它给我以下错误
Undefined symbols for architecture i386:
"_OBJC_CLASS_$_SKPSMTPMessage", referenced from:
objc-class-ref in MFViewController.o
"_kSKPSMTPPartContentTransferEncodingKey", referenced from:
-[MFViewController sendMail:] in MFViewController.o
"_kSKPSMTPPartContentTypeKey", referenced from:
-[MFViewController sendMail:] in MFViewController.o
"_kSKPSMTPPartMessageKey", referenced from:
-[MFViewController sendMail:] in MFViewController.o
"_CFHostCreateWithName", referenced from:
+[NSStream(SKPSMTPExtensions) getStreamsToHostNamed:port:inputStream:outputStream:] in NSStream+SKPSMTPExtensions.o
+[NSStream(SKPSMTPExtensions) getStreamsToHostNamed:port:inputStream:outputStream:] in SKPSMTPMessage.o
"_CFStreamCreatePairWithSocketToCFHost", referenced from:
+[NSStream(SKPSMTPExtensions) getStreamsToHostNamed:port:inputStream:outputStream:] in NSStream+SKPSMTPExtensions.o
+[NSStream(SKPSMTPExtensions) getStreamsToHostNamed:port:inputStream:outputStream:] in SKPSMTPMessage.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)请记住，我使用的是Xcode 4.3，我应该怎么做来解决这个问题？？
添加CFNetwork框架和SystemConfiguration框架后，错误数从6个减少到4个，现在是
Undefined symbols for architecture i386:
"_OBJC_CLASS_$_SKPSMTPMessage", referenced from:
objc-class-ref in MFViewController.o
"_kSKPSMTPPartContentTransferEncodingKey", referenced from:
-[MFViewController sendMail:] in MFViewController.o
"_kSKPSMTPPartContentTypeKey", referenced from:
-[MFViewController sendMail:] in MFViewController.o
"_kSKPSMTPPartMessageKey", referenced from:
-[MFViewController sendMail:] in MFViewController.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)
2条答案
按热度按时间flmtquvp1#
尝试添加以下链接器标志：
3xiyfsfu2#
此错误消息意味着这些类搜索框架中的某些对象，而这些对象尚未链接到您的项目。Here您可以找到您需要的框架：CFNetwork框架。
编辑
其他4个错误可能是由于SKPSMT类的导入不正确造成的。如果该类是作为库下载的，您还需要将应用与该库链接。