How to solve "does not name a type error"

[NtobekoQt]

Hi there please help after trying to run the code below I got the error: 'FCType' does not name a type

header file

#ifndef FREIGHTCAR_H
#define FREIGHTCAR_H
 
#include <QString>
 
class FreightCar
{
 
private:
    QString ID;
    double tonnage;
protected:
    enum FCType {ALL, BOX, GONDOLA, TANK, FLATBED};
    FCType type;
public:
    FreightCar(QString id, double t);
    QString getID() const;
    double getTonnage();
    double setTonnage(double t);
    FCType getType() const;
    QString toString()const;
 
 
 
 
};
#endif // FREIGHTCAR_H

#ifndef FREIGHTCAR_H
#define FREIGHTCAR_H

#include <QString>

class FreightCar
{

private:
    QString ID;
    double tonnage;
protected:
    enum FCType {ALL, BOX, GONDOLA, TANK, FLATBED};
    FCType type;
public:
    FreightCar(QString id, double t);
    QString getID() const;
    double getTonnage();
    double setTonnage(double t);
    FCType getType() const;
    QString toString()const;




};
#endif // FREIGHTCAR_H

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.cpp file

#include "freightcar.h"
 
FreightCar::FreightCar(QString id, double t)
    : ID(id), tonnage(t) { }
 
QString FreightCar::getID() const{
    return ID;
}
double FreightCar::getTonnage(){
    return tonnage;
}
double FreightCar::setTonnage(double t){
   return  tonnage = t;
}
FCType FreightCar::getType() const{
  return type;
}
QString FreightCar::toString() const{
    return QString("Freight car: \nID: %1, %2 \nTonnage: %3 \nFreight car type: %4")
            .arg(ID)
            .arg(tonnage)
            .arg(type);
}

#include "freightcar.h"

FreightCar::FreightCar(QString id, double t)
    : ID(id), tonnage(t) { }

QString FreightCar::getID() const{
    return ID;
}
double FreightCar::getTonnage(){
    return tonnage;
}
double FreightCar::setTonnage(double t){
   return  tonnage = t;
}
FCType FreightCar::getType() const{
  return type;
}
QString FreightCar::toString() const{
    return QString("Freight car: \nID: %1, %2 \nTonnage: %3 \nFreight car type: %4")
            .arg(ID)
            .arg(tonnage)
            .arg(type);
}

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[ChrisW67]

The getType() return type is FreightCar::FCType, there is no FCType in global scope..
The issue then becomes that the enum is declared protected so it is not useful as the return value of a public function: make the enum declaration public.

BTW: Your constructor should initialise the type member variable.