Nsryjdtyk

I have been struggling for some time now and can't figure this out. I added a class to my basic Qt GUI application and i got linker errors. I don't see what can cause this and are hoping for feedback.

Linker errors:

main.obj:-1: error: LNK2019: unresolved external symbol "public: void __thiscall Serial::start(enum QSerialPort::BaudRate)" (?start@Serial@@QAEXW4BaudRate@QSerialPort@@@Z) referenced in function _main



main.obj:-1: error: LNK2019: unresolved external symbol "public: __thiscall Serial::Serial(class QObject *)" (??0Serial@@QAE@PAVQObject@@@Z) referenced in function _main



debugTest.exe:-1: error: LNK1120: 2 unresolved externals

Here is the project file:

#-------------------------------------------------

#

# Project created by QtCreator 2013-11-18T10:08:32

#

#-------------------------------------------------



QT       += core gui



greaterThan(QT_MAJOR_VERSION, 4): QT += widgets



TARGET = Test

TEMPLATE = app





SOURCES += main.cpp

        mainwindow.cpp 

    serial.cpp



HEADERS  += mainwindow.h 

    serial.h



FORMS    += mainwindow.ui

serial.h file:

#ifndef SERIAL_H

#define SERIAL_H



#include <QObject>

#include <QtSerialPort/QSerialPort>



class Serial : public QObject

{

    Q_OBJECT

public:

    explicit Serial(QObject *parent = 0);

    void start(QSerialPort::BaudRate baudRate);

    bool Serial::closePort();

    void Serial::readData();



signals:



public slots:



};



#endif // SERIAL_H

serial.cpp file:

#include "serial.h"

#include <QObject>

#include <QtSerialPort/QSerialPort>



Serial::Serial(QObject *parent) :

    QObject(parent)

{

    serial = new QSerialPort(this);

    connect(serial, SIGNAL(readyRead()), this, SLOT(readData()));

}



bool Serial::start(QSerialPort::BaudRate baudRate)

{

    if(serial.open(QIODevice::ReadWrite))

    {

        //TODO: Connection OK is green in GUI

        QDebug << "Port opened successfully" << std::endl;

        return true;

    }

    else

    {

        //Open failed.

        QDebug << "Port failed to open" << std::endl;

        //TODO: Show error window in GUI

        return false;

    }



    if(

        serial.setBaudRate(baudRate) &&

        serial.setDataBits(QSerialPort::Data8) &&

        serial.setParity(QSerialPort::NoParity) &&

        serial.setStopBits(QSerialPort::OneStop) &&

        serial.setFlowControl(QSerialPort::NoFlowControl)

      )

    {

        //Connection ok.

        QDebug << "Parameters set OK" << std::endl;

    }

    else

    {

        QDebug << "Parameters set FAILED" << std::endl;

        Serial::closePort();

    }

}



bool Serial::closePort()

{

    serial.close();

    //TODO: Connection OK is red in GUI

}



void Serial::readData()

{

    this->readDataArray = this->serial.readAll();

}

As noted here, because QtSerialPort is an add on module you need to explicitly add it to your project:

QT += serialport