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体系结构i386的未定义符号:_OBJC_CLASS _ $ _ SKPSMTPMessage“,引用自:错误
我已经导入了用于在后台从应用程序发送电子邮件的框架,即SKPSMTPMessageFramework。有人可以建议为什么显示以下错误 Undefined symbols for architecture i386: "_OBJC_CLASS_$_SKPSMTPMessage", referenced from: objc-class-ref in ConfirmController.o "_kSKPSMTPPartContentTransferEncodingKey", referenced from: -[ConfirmController sendEmail] in ConfirmController.o "_kSKPSMTPPartMessageKey", referenced from: -[ConfirmController sendEmail] in ConfirmController.o "_kSKPSMTPPartContentTypeKey", referenced from: -[ConfirmController sendEmail] in ConfirmController.o ld: symbol(s) not found for architecture i386 collect2: ld returned 1 exit status 框架来源: 锁定MFMailComposeViewController中的字段 更新: 答:只需将文件夹拖放到项目上,然后单击复制。多数民众赞成在选中项目复选框和目标复选框。