C++ template error

I get some compiling errors about template instantiation :wall: , but I can't find where the syntax errors happens. Can some help me?

template<typename Type> class SingleList;

template<typename Type> class SingleListNode{
private:
	friend class SingleList<Type>;

	SingleListNode() : next(NULL){}

public:
	friend ostream& operator<< <Type>(ostream& os,SingleListNode<Type>& sln);                  //Error!!!

private:
	SingleListNode *next;
};

template<typename Type> ostream& operator<<(ostream& os,SingleListNode<Type>& out){
	os<<out.data;
	return os;
}

template<typename Type> class SingleList{
public:
	SingleList()
        {
            head =	new SingleListNode<Type> () ;                 //Error!!!
        }
	~SingleList(){
		delete head;
	}

private:
	SingleListNode<Type> *head;
};

Compiler error message:

|| g++ -g -I ./inc/ -c single_list_test.cpp  -o single_list_test.o
|| single_list.h: In instantiation of �SingleListNode<int>�:
single_list.h|25 col 13| instantiated from �SingleList<Type>::SingleList() [with Type = int]�
single_list_test.cpp|9 col 18| instantiated from here
single_list.h|10 col 18| error: template-id �operator<< <int>� for �std::ostream& operator<<(std::ostream&, SingleListNode<int>&)� does not match any template declaration
|| make: 
*** [single_list_test.o] Error 1

To my gcc , just modify the following statement

friend ostream& operator<< <Type>\(ostream& os,SingleListNode<Type>& sln\)

to

 friend ostream& operator<< \(ostream& os,SingleListNode<Type>& sln\)