Linker error when appending to a std::vector of std::unique_ptr
I have created a Node class and I am trying to add std::unique_ptr to a domain class with a std::vectorstd::unique_ptr<Node> (based on domain length and space subdivision). It seems that I have a linker error whenever I am trying to create the vector. I have made several tests but I am not seeing where this error is coming from. Would anyone have an idea?