no matching function for call to 'ParentClass::ParentClass' error in derived class constructor

[Niagarer]

Hey,
First: I am pretty sure, this is just a tiny mistake, but I am unfortunately stuck right now...
When I compile my program, I get the error from the title in the cpp constructor of a class ("FunctionNode") that derives from another class ("Node").
The parent class is ok, everything works, I just get the error in the derived class.
Here the class header:

#ifndef FUNCTIONNODE_H
#define FUNCTIONNODE_H

#include "node.h"
class FunctionNode : public Node
{
public:
    FunctionNode();
};
#endif // FUNCTIONNODE_H

and the source file:

#include "functionNode.h"
FunctionNode::FunctionNode(){} // error here

error:

error: no matching function for call to 'Node::Node()'
 FunctionNode::FunctionNode()

What did I miss?
Thanks for answers

[sierdzio]

You did not initialize the parent class, so compiler tries to automatically initialize it using default constructor Node(), but it is missing.

You should initialize the parent class manually:

FunctionNode::FunctionNode() : Node(some, arguments) {}

Or add a default constructor to Node class.

[Niagarer]

@sierdzio Ahh, yes, thanks, I wondered, that it worked with some QObject classes this way, but I forgot to add all default values for arguments in the Node constructor, that I may can not give at this point but later in the program (or calling them with default values here).
Thanks!

[sierdzio]

Happy coding!