项目编译报错duplicate symbols

将已有的Swift项目中集成OBS.framework，在Build Settings的Other Linker Flags中添加了-force_load $(SRCROOT)/XXX/OBS.framework/OBS，然后将Allow Nonmodular includes in Framework Modules设置为Yes，编译时报错：

Showing Recent Errors Only

1639 duplicate symbols

修复方法：

Xcode -> TARGETS -> Build Settings -> Other Linker Flags 添加一行"-ld64"