Xcode"找不到选项-L的目录"错误

我收到这些错误:

ld: warning: directory not found for option '-L"/pathToMyApp/MyApp/Shared/Libraries/ADMS_AppLibrary"'
ld: warning: directory not found for option '-L"/pathToMyApp/MyApp/Shared/Libraries/TestFlightSDK1.1"'
ld: warning: directory not found for option '-L"/pathToMyApp/MyApp/Shared/Libraries/Medialets"'
ld: library not found for -lTestFlight
clang: error: linker command failed with exit code 1 (use -v to see invocation)

事实上,这些目录确实存在于上面的路径中.

问题是,该应用程序用于编译罚款.我所做的就是在项目中添加一个新版本的Medialets库,现在我得到了这些错误.