用 cocoapods 集成 qiniu sdk, 项目 swift,oc 混编,编译时报如下错误:
Undefined symbols for architecture x86_64:
"_OBJC_CLASS_$_QNUploadManager", referenced from:
objc-class-ref in QiNiuUploadTool.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
以 framework 的形势引入项目即可.(targets -> project -> general -> linked frameworks and libraries)