報錯信息

error: Undefined symbol: typeinfo for sdk::IConfig Undefined symbol: vtable for sdk::IConfig具體信息： Undefined symbols for architecture x86_64:"typeinfo for sdk::IConfig", referenced from:typeinfo for sdk::ConfigImpl in sdk.a(config_impl.o)"vtable for sdk::IConfig", referenced from:sdk::IConfig::IConfig() in sdk.a(sdk_impl.o)NOTE: a missing vtable usually means the first non-inline virtual member function has no definition. ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation)

解決過程

由于IConfig是一個純虛接口類，一開始沒理解提示信息中的函數未定義。

逐個接口檢查，后發現中間有個小接口沒寫后面的=0，加上后問題解決。

總結

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