Class 'is not a template type'

Question

What does this error mean?

Generic.h:25: error: \'Generic\' is not a template type

Here\'s Generic.

template 

        

Answer 1

Your problem is that you are defining visitor of type Generic with no template param.

When you forward declared the class as Generic then at line 15 the compiler found the declaration. But when you changed the declaration with template then the class Generic is no longer found.

So, you should do something like:

template 
class Generic;

class Property : public CFG {
    Generic *visitor; // line 15

or

template 
class Generic;

template 
class Property : public CFG {
    Generic *visitor; // line 15

or something like that.