Undefined reference to vtable

Question

When building my C++ program, I\'m getting the error message

undefined reference to \'vtable...

What is the cause of this probl

Answer 1

Not to cross post but. If you are dealing with inheritance the second google hit was what I had missed, ie. all virtual methods should be defined.

Such as:

virtual void fooBar() = 0;

See answare C++ Undefined Reference to vtable and inheritance for details. Just realized it's already mentioned above, but heck it might help someone.