How to take out the definition of a template class (variable) constructor outside of it?

Question

C++ / C#

How to take out the definition of a template class (variable) constructor outside of it?
If I write like this:

template<typename ...Args>
class UniformBuffer
{
public:
  UniformBuffer(Args... arg);
};

template<typename ...Args>
UniformBuffer::UniformBuffer( Args ...arg)
{ 
//код
}

then the compiler writes: the list of template arguments must match the list of parameters. Please tell me why this is and how to fix it

Answer 1

It should be like this:

template<typename ...Args>
UniformBuffer<Args...>::UniformBuffer(Args... arg)
{ 
//код
}

Your template is the class itself, not its methods.