c++ - How to solve linker error in multi-file cpp project

Question

This question already has answers here: question from:https://stackoverflow.com/questions/65644567/how-to-solve-linker-error-in-multi-file-cpp-project

Answer 1

As mentioned by Igor Tandetrik, you're not including person.cpp in the actual build

add_executable(${PROJECT_NAME} src/main.cpp src/person.cpp)

Should get you there.