Undefined reference to _GLOBAL__sub_I__ZN11CarC2Ev':

I am trying to implement a way to register a class ("Car" in the code) and then using the Factory pattern, instantiate an object at run time (the base class is "Transport" and "Car" inherits from it).

This is my code in the Registry.h

#define REGISTER_CLASS(NAME, TYPE, BASE) static Register<BASE> registrer((const char*)NAME, [](void) -> BASE* { return new TYPE();});

template <class TClass>
class Register {
public:
    Register<TClass>(const char* className, std::function<TClass* (void)> classFactoryFunction);
};

and this is the Registy.cpp

template <class TClass>
Register<TClass>::Register(const char* className, std::function<TClass* (void)> classFactoryFunction){
    // Register the class factory function
    Factory::Instance()->RegisterFactoryFunction(className, classFactoryFunction);
}

In the Car.cpp I use the following code to register the Car:

REGISTER_CLASS((const char*)"Car", Car, Transport);

If I don't use the template, all my code works... With the template, I got the following error:

sketch/src/Car.cpp.o: In function _GLOBAL__sub_I__ZN10CarC2Ev': sketch/src/Car.cpp:42: undefined reference toRegister::Register(char const*, std::function)' collect2: error: ld returned 1 exit status

What's wrong in my code?