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class template has already been declared as a non-class template

firix (438)
Hi
I can not run this code.
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template<class T>
class SimNode{	
	T data;
	int link;
public:
	friend class SimSpace;
	friend class SimChain;

};

template<class S>
class SimSpace{
	int NumberOfNodes;
	int first;
	SimNode<S> *node;
public:
	SimSpace(int MaxSpaceSize=100)
	{
	
		NumberOfNodes = MaxSpaceSize;
		node = new SimNode[NumberOfNodes];
		for(int i=0; i<NumberOfNodes-1; i++)
			node[i].link = i+1;
		node[NumberOfNodes-1].link = -1;
		first = 0;
	}
	~SimSpace()
	{
		delete[]node;
	}
	int Allocate()
	{
		if(first == -1)
			throw out_of_range("Error");
			int i= first;
		first = node[i].link;
		return i;
	}
	void Deallocate(int& i)
	{
		node[i].link = first;
		first = i;
		i= -1;
	}
	//friend class SimChain;

	

};






////////////////////////////////////////////////////////////////////////////////
template<class TT>
class SimChain{
	TT first;
	static SimSpace<TT> S;
public:
	SimChain()
	{
		first= -1;
	}
	~SimChain()
	{
		Destroy();
	}
	void Destroy()
	{
		int next;
		while(first!=-1) {
			next = S.node[first].link;
			S.Deallocate(first);
			first = next;
		}
	}

	int Length()const
	{
		int current = first;
		int len =0;
		while(current!= -1) {
		     current = Snode[current].link;
		     len++;
	    }
		return len;
	}

	bool Find(int k, TT &x)const
	{
		if(k<1) 
			return false;
		int current= first;
		int index= 1;
		while(index < k && current!= -1) {
			current= S.node[current].link;
			index++;
		}
		if(current != -1){
			x = S.node[current].data;
			return true;
		}
		return false;
	}


	SimChain<T> &Delete(int k, TT &x)
	{
		if(k<1 || first == -1)
			throw out_of_range("Error");
		int p = first;

		if(k == 1)
			first = S.node[first].link;
		else{
			int q=first;
			for(int index=1 ; index< k-1 && q!=-1;index++)
				q= S.node[q].link;
			if(q== -1 ||S.node[q].link == -1 )
				throw out_of_range("Error");
			p= S.node[q].link;

			S.node[q].link = S.node[p].link;
		}

		x= S.node[p].data;
		S.Deallocate(p);
		return *this;
	}
	SimChain<TT> &Insert(int k,const TT &x)
	{
		
		if(k < 0) 
			throw out_of_range("Error");
		int p = first;
		for(int index=1; index < k && p!= -1 ; index++)
			p= S.node[p].link;

		if(k > 0 && p==-1)
			throw out_of_range("Error");
		int y = S.Allocate();
		S.node[y].data = x;

		if(k){
			S.node[y].link = S.node[p].link;
			S.node[p].link = y;
		}
		else{
			S.node[y].link = first;
			first = y;
		}

		return *this;
	}
	//void Output(ostream& out)const;
	


};






////////////////////////////////////////////////
int main()
{
	
	SimChain<int c;


	return 0;
}


Output of the program as follows:



1>main.cpp(3334): error C2989: 'SimSpace' : class template has already been declared as a non-class template
1>          main.cpp(3291) : see declaration of 'SimSpace'
1>main.cpp(3296): error C3857: 'SimSpace': multiple template parameter lists are not allowed
1>main.cpp(3446): error C2989: 'SimChain' : class template has already been declared as a non-class template
1>          main.cpp(3292) : see declaration of 'SimChain'
1>main.cpp(3342): error C3857: 'SimChain': multiple template parameter lists are not allowed
1>main.cpp(3458): error C2143: syntax error : missing ';' before '<'
1>main.cpp(3458): error C2143: syntax error : missing ';' before '<'
1>
1>Build FAILED.
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