• I have a Qt project
• Got this error in file “lab2.h” next to the line with the include directive (signed next to it)

#ifndef LAB2_H
#define LAB2_H

#include <QWidget>
#include <QLabel>
#include <QLineEdit>
#include <QPushButton>
#include <QPlainTextEdit>
#include <QFrame>
#include "element.h" //too few arguments provided to function-like macro invocation element.h:24:25note: error occurred here:Qt6.7.0mingw_64include...


class lab2 : public QWidget
{
    Q_OBJECT

protected:
    QFrame *f;
    QLabel *label;
    QLineEdit *edit;
    QPlainTextEdit *box;
    QPushButton *add;
    QPushButton *del;
    QPushButton *first;
    QPushButton *last;
    QPushButton *all;
    QPushButton *exit;
    QPushButton *sum;

    lists my_list;
    element *q;

public:
    lab2(QWidget *parent = nullptr);
    ~lab2();
public slots:
    void beg();
    void fi();
    void de();
    void la();
    void lla();
    void S();
};

class numi: public element{
public:
    int i;
    numi(int n):element(){
        i=n;
    }
    std::string show()override{
        std::string ret="";
        ret+=std::to_string(i);
        return ret;
    }
    ~numi() override{}
};

class numf: public element{
public:
    double f;
    numf(double m): element(){f=m;}
    std::string show()override{
        std::string ret="";
        ret+=std::to_string(f);
        return ret;
    }
    ~numf()override{}
};
#endif // LAB2_H

• from file “element.h” with description of classes

#ifndef ELEMENT_H
#define ELEMENT_H

#include <string>


class element
{
public:
    element *p;
    element(){p=nullptr;};
    virtual ~element(){}
    virtual std::string show()=0;
};

class lists{
private:
    element *f,*l,*c;
public:
    lists();
    void add(element *q);
    ~lists();
    void del();
    std::string foreach();
    std::string sym();
    element *fist();
    element *last();

};

class E{
public:
    int e;
    E(int ae);
    std::string error();
};

#endif // ELEMENT_H

I realized after looking for similar problems that I had lost my arguments somewhere. I don’t quite understand where to look for the error