In template: no viable overloaded '='

template<typename Component, typename... Args>
  Entity* Add(Args&&... args) {
    components[typeid(Component)] = std::make_unique<Component>(std::forward<Args>(args)...);
    return this;
  }

void GameScene::OnCreate() {
    {
        auto player = engine.GetEntityManager()->CreateEntity();
        player->Add<MoveComponent>(&speed);
        player->Add<HealthComponent>(30);
    }
}

#include <memory>
#include <map>
#include <string>
 
struct AbstractComponent
{
    virtual ~AbstractComponent()=default;
};
 
struct MoveComponent:public AbstractComponent
{
    MoveComponent(int i){}
};
 
struct HealthComponent:public AbstractComponent
{
    HealthComponent(int i,int n){}
};
 
struct container
{
    std::map<std::string,std::unique_ptr<AbstractComponent>> components;
    
    template<typename Component, typename... Args>
    void Add(Args&&... args)
    {
        components[typeid(Component).name()] = std::make_unique<Component>(std::forward<Args>(args)...);
    }
};
 
int main()
{
    container c;
    c.Add<MoveComponent>(10);
    c.Add<HealthComponent>(20,30);
 
    return 0;
}