syntax help needed

[RickA]

I want to make Error an abstract class. I want ErrorLog to inherit from Error. What am I doing wrong? How do I fix the code below? Thanks.

#ifndef ERROR_H
#define ERROR_H
#include <QString>

class Error{

public:
Error();
virtual void writeError(QString errorType) const = 0;
};

#endif // ERROR_H

#include "error.h"

Error::Error(){

}

#ifndef ERRORLOG_H
#define ERRORLOG_H
#include "error.h"

class ErrorLog : public Error{
public:
ErrorLog();
virtual void writeError(QString);
};

#endif // ERRORLOG_H

#include "errorlog.h"
#include <QDebug>

ErrorLog::ErrorLog(){
}
void ErrorLog::writeError(QString s){
qDebug()<<"called ErrorLog->writeError()";
}

/***************** main *****************/
#include "errorlog.h"
#include "errorprompt.h"
#include "strategycontext.h"

int main(){
ErrorLog errorlog;

return 0;
}

Errors:
/home/rick/Qt/Error/main.cpp:6: error: cannot declare variable ‘errorlog’ to be of abstract type ‘ErrorLog’
/home/rick/Qt/Error/errorlog.h:5: note: because the following virtual functions are pure within ‘ErrorLog’:
/home/rick/Qt/Error/error.h:9: note: virtual void Error::writeError(QString) const

[GNiewerth]

The function signature of ErrorLog::writeError does not match Error::writeError, you&#180;re missing the const modifier.

class Error
{
   virtual void writeError( QString s ) const = 0;
}

class ErrorLog : public Error
{
   virtual void writeError( QString s );
}

[RickA]

Thank you, GNiewerth