"Weapon": no appropriate default constructor availa

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C++

I don't get it. I've been staring at the code the code for a few hours and I don't know how I can fix it.
The class I'm creating, called Weapon.

This is how I defined the constructor:

    <pre lang="c++">template <class T1> Weapon (T1& A);

This is how I implement the constructor:

template<class T1> Weapon::Weapon(T1 & A)
    {
        if(A == Chicken)
	    {
		    (*texture).loadFromFile("Images/Egg.png");
		    sprite.setTexture(*texture);
		    sprite.setPosition((*(chickens.begin())).getPosition().x, (*(chickens.begin())).getPosition().y);
	    }
	    else if (A == Ship)
	    {
		    (*texture).loadFromFile("Images/Weapon.png");
		    sprite.setTexture(*texture);
		    sprit<code></code>e.setPosition(ship.getPosition());
	    }
    }

And I have error:

C2512 "Weapon": no appriopriate default constructor available

When I click on it, another one shows up:

E0291 no default constructor exists for class "Weapon"

and redirects me to the file "Engine.cpp"

Engine::Engine(RenderWindow & window)
    {
    	if (!background.loadFromFile("data/images/background.png"))
    	{
    		MessageBox(NULL, "Textures not found!", "ERROR", NULL);
    		return;
    	}
    	runEngine(window);
    }

and points to the opening brace.

My class Engine looks like this:

class Engine
    {
    public:
	    Engine(RenderWindow &win);
	    ~Engine(void);

	    void runEngine(RenderWindow &window);
        template <class T1, class T2> bool isIntersecting(T1& A, T2& B);
        template <class T1, class T2> bool collisionTest(T1& A, T2& B);

    private:
	    Ship ship;
	    Weapon weapon;
	    Weapon egg;
	    vector<Chicken> chickens;
	    Texture background;
    };

Thanks in advance.

What I have tried:

change the declaration of the constructor, in Weapon and in Engine