Error: QBluetoothUuid::mine not found in Qt Android

[robotden]

Hello
I am using Qt for Android 5.7 and Qt Bluetooth lib
I try to compile source code but I met an error as below:

device.cpp:158: error: 'mine' is not a member of 'QBluetoothUuid'
const QLowEnergyCharacteristic link = service->characteristic(QBluetoothUuid::mine);


Please help me. Thanks

[anda_skoa]

What makes you think that "mine" is a member of QBluetoothUuid=
Do you have any documentation that says so?

Cheers,
_

[robotden]

Thanks for your reply.
I read at here:
https://www.youtube.com/watch?v=E8_5UZWDgMo
Google Drive Folder: https://goo.gl/3vZBc5

---

Added after 5 minutes:

In WriteCharacteristic examples, open device.cpp, I found "mime" at here:

const QLowEnergyCharacteristic link = service->characteristic(QBluetoothUuid::mine);
if(service->state() == QLowEnergyService::ServiceDiscovered) {
service->QLowEnergyService::writeCharacteristic(link,QByte Array::fromHex("03"),QLowEnergyService::WriteWithR esponse);
readData(QString("0x03"));
}

[anda_skoa]

There is no content there as far as I can see.

Just post the code here?

Cheers,
_

[robotden]

Yes, of course.

Line 6 from bottom to top in device.cpp:

#include "device.h"
#include <qbluetoothaddress.h>
#include <qbluetoothdevicediscoveryagent.h>
#include <qbluetoothlocaldevice.h>
#include <qbluetoothdeviceinfo.h>
#include <qbluetoothservicediscoveryagent.h>
#include <QDebug>
#include <QList>
#include <QString>
#include "service.h"
#include <QLowEnergyService>
 
 
 
Device::Device(QObject *parent) : QObject(parent)
{
    discoveryAgent = new QBluetoothDeviceDiscoveryAgent();
    connect(discoveryAgent, SIGNAL(deviceDiscovered(const QBluetoothDeviceInfo&)), this, SLOT(addDevice(const QBluetoothDeviceInfo&)));
 
}
 
Device::~Device() {
    delete discoveryAgent;
    delete m_control;
    qDeleteAll(devices);
    qDeleteAll(m_services);
    qDeleteAll(m_characteristics);
    devices.clear();
    m_services.clear();
    m_characteristics.clear();
 
}
 
void Device::addDevice(const QBluetoothDeviceInfo &info) {
    if(info.coreConfigurations() & QBluetoothDeviceInfo::LowEnergyCoreConfiguration) {
        DeviceInfo *d = new DeviceInfo(info);
        devices.append(d);
        qWarning() << "Discovered BLE Device " + d->getName() << "Address: " + d->getAddress();
        if(d->getName() == "EX BLE") {
            address(QString(d->getAddress()));
        }
    }
}
 
void Device::startDeviceDiscovery() {
    qDeleteAll(devices);
    devices.clear();
    discoveryAgent->start();
    qWarning() << "Starting to Scan.";
    //address(QString("Starting to Scan."));
}
 
void Device::connectDevice(const QString &address) {
    for(int i = 0; i < devices.size(); i++) {
        if(((DeviceInfo*)devices.at(i)) -> getAddress() == address) {
            m_currentDevice.setDevice(((DeviceInfo*)devices.at(i))->getDevice());
            qWarning() << "Connecting to Device.";
            break;
        }
 
    }
 
    qDeleteAll(m_characteristics);
    m_characteristics.clear();
    qDeleteAll(m_services);
    m_services.clear();
 
    m_control = new QLowEnergyController(m_currentDevice.getDevice(), this);
 
    connect(m_control, SIGNAL(serviceDiscovered(QBluetoothUuid)), this, SLOT(addLowEnergyService(QBluetoothUuid)));
    connect(m_control, SIGNAL(discoveryFinished()), this, SLOT(serviceScanDone()));
    connect(m_control, SIGNAL(error(QLowEnergyController::Error)), this, SLOT(controllerError(QLowEnergyController::Error)));
    connect(m_control, SIGNAL(connected()), this, SLOT(deviceConnected()));
    connect(m_control, SIGNAL(disconnected()), this, SLOT(deviceDisconnected()));
 
    m_control->connectToDevice();
}
 
void Device::deviceConnected() {
    m_control->discoverServices();
}
 
void Device::deviceDisconnected() {
    qWarning() << "Remote Device Disconnected.";
}
 
void Device::controllerError(QLowEnergyController::Error error) {
    qWarning() << "Controller Error: " << error << "Cannot connect to remote device.";
    serviceUuid(QString("Controller Error."));
}
 
QVariant Device::name() {
    return QVariant::fromValue(devices);
}
 
void Device::serviceScanDone() {
    qWarning() << "Service Scan Done.";
}
 
void Device::addLowEnergyService(const QBluetoothUuid &gatt) {
 
    QLowEnergyService *service = m_control->createServiceObject(gatt);
    if(!service) {
        qWarning() << "Cannot Create Service for UUID." ;
        serviceUuid(QString("Cannot Create Service For UUID."));
        return;
    }
 
    Service *serv = new Service(service);
    m_services.append(serv);
    qWarning() << "Service Found: " + serv->getName() << "UUID: " << serv->getUuid();
    if(serv->getUuid() == "0xb73a") {
        serviceUuid(QString(serv->getUuid()));
        qWarning() << "Service Found";
    }
 
}
 
void Device::disconFromDevice() {
    if(m_control->state() != QLowEnergyController::UnconnectedState)
        m_control->disconnectFromDevice();
    else
        deviceDisconnected();
}
 
void Device::connectToService(const QString &uuid)
{
    QLowEnergyService *service = 0;
    for(int i = 0; i<m_services.size(); i++) {
        Service *serviceInfo = (Service*)m_services.at(i);
        if(serviceInfo->getUuid() == uuid) {
            service = serviceInfo->service();
            break;
        }
    }
 
    if(!service)
        return;
 
    qDeleteAll(m_characteristics);
    m_characteristics.clear();
 
    if(service->state() == QLowEnergyService::DiscoveryRequired) {
        service->discoverDetails();
        qWarning() << "Discovering Service Details";
        serviceUuid(QString("Service Details Discovered"));
        return;
    }
 
    const QList<QLowEnergyCharacteristic> chars = service->characteristics();
    foreach(const QLowEnergyCharacteristic &ch, chars) {
        Characteristics *cInfo = new Characteristics(ch);
        m_characteristics.append(cInfo);
        //readData(QString(cInfo->getValue()));
 
    }
    const QLowEnergyCharacteristic link = service->characteristic(QBluetoothUuid::mine);
    if(service->state() == QLowEnergyService::ServiceDiscovered) {
        service->QLowEnergyService::writeCharacteristic(link,QByteArray::fromHex("03"),QLowEnergyService::WriteWithResponse);
        readData(QString("0x03"));
    }
}

#include "device.h"
#include <qbluetoothaddress.h>
#include <qbluetoothdevicediscoveryagent.h>
#include <qbluetoothlocaldevice.h>
#include <qbluetoothdeviceinfo.h>
#include <qbluetoothservicediscoveryagent.h>
#include <QDebug>
#include <QList>
#include <QString>
#include "service.h"
#include <QLowEnergyService>



Device::Device(QObject *parent) : QObject(parent)
{
    discoveryAgent = new QBluetoothDeviceDiscoveryAgent();
    connect(discoveryAgent, SIGNAL(deviceDiscovered(const QBluetoothDeviceInfo&)), this, SLOT(addDevice(const QBluetoothDeviceInfo&)));

}

Device::~Device() {
    delete discoveryAgent;
    delete m_control;
    qDeleteAll(devices);
    qDeleteAll(m_services);
    qDeleteAll(m_characteristics);
    devices.clear();
    m_services.clear();
    m_characteristics.clear();

}

void Device::addDevice(const QBluetoothDeviceInfo &info) {
    if(info.coreConfigurations() & QBluetoothDeviceInfo::LowEnergyCoreConfiguration) {
        DeviceInfo *d = new DeviceInfo(info);
        devices.append(d);
        qWarning() << "Discovered BLE Device " + d->getName() << "Address: " + d->getAddress();
        if(d->getName() == "EX BLE") {
            address(QString(d->getAddress()));
        }
    }
}

void Device::startDeviceDiscovery() {
    qDeleteAll(devices);
    devices.clear();
    discoveryAgent->start();
    qWarning() << "Starting to Scan.";
    //address(QString("Starting to Scan."));
}

void Device::connectDevice(const QString &address) {
    for(int i = 0; i < devices.size(); i++) {
        if(((DeviceInfo*)devices.at(i)) -> getAddress() == address) {
            m_currentDevice.setDevice(((DeviceInfo*)devices.at(i))->getDevice());
            qWarning() << "Connecting to Device.";
            break;
        }

    }

    qDeleteAll(m_characteristics);
    m_characteristics.clear();
    qDeleteAll(m_services);
    m_services.clear();

    m_control = new QLowEnergyController(m_currentDevice.getDevice(), this);

    connect(m_control, SIGNAL(serviceDiscovered(QBluetoothUuid)), this, SLOT(addLowEnergyService(QBluetoothUuid)));
    connect(m_control, SIGNAL(discoveryFinished()), this, SLOT(serviceScanDone()));
    connect(m_control, SIGNAL(error(QLowEnergyController::Error)), this, SLOT(controllerError(QLowEnergyController::Error)));
    connect(m_control, SIGNAL(connected()), this, SLOT(deviceConnected()));
    connect(m_control, SIGNAL(disconnected()), this, SLOT(deviceDisconnected()));

    m_control->connectToDevice();
}

void Device::deviceConnected() {
    m_control->discoverServices();
}

void Device::deviceDisconnected() {
    qWarning() << "Remote Device Disconnected.";
}

void Device::controllerError(QLowEnergyController::Error error) {
    qWarning() << "Controller Error: " << error << "Cannot connect to remote device.";
    serviceUuid(QString("Controller Error."));
}

QVariant Device::name() {
    return QVariant::fromValue(devices);
}

void Device::serviceScanDone() {
    qWarning() << "Service Scan Done.";
}

void Device::addLowEnergyService(const QBluetoothUuid &gatt) {

    QLowEnergyService *service = m_control->createServiceObject(gatt);
    if(!service) {
        qWarning() << "Cannot Create Service for UUID." ;
        serviceUuid(QString("Cannot Create Service For UUID."));
        return;
    }

    Service *serv = new Service(service);
    m_services.append(serv);
    qWarning() << "Service Found: " + serv->getName() << "UUID: " << serv->getUuid();
    if(serv->getUuid() == "0xb73a") {
        serviceUuid(QString(serv->getUuid()));
        qWarning() << "Service Found";
    }

}

void Device::disconFromDevice() {
    if(m_control->state() != QLowEnergyController::UnconnectedState)
        m_control->disconnectFromDevice();
    else
        deviceDisconnected();
}

void Device::connectToService(const QString &uuid)
{
    QLowEnergyService *service = 0;
    for(int i = 0; i<m_services.size(); i++) {
        Service *serviceInfo = (Service*)m_services.at(i);
        if(serviceInfo->getUuid() == uuid) {
            service = serviceInfo->service();
            break;
        }
    }

    if(!service)
        return;

    qDeleteAll(m_characteristics);
    m_characteristics.clear();

    if(service->state() == QLowEnergyService::DiscoveryRequired) {
        service->discoverDetails();
        qWarning() << "Discovering Service Details";
        serviceUuid(QString("Service Details Discovered"));
        return;
    }

    const QList<QLowEnergyCharacteristic> chars = service->characteristics();
    foreach(const QLowEnergyCharacteristic &ch, chars) {
        Characteristics *cInfo = new Characteristics(ch);
        m_characteristics.append(cInfo);
        //readData(QString(cInfo->getValue()));

    }
    const QLowEnergyCharacteristic link = service->characteristic(QBluetoothUuid::mine);
    if(service->state() == QLowEnergyService::ServiceDiscovered) {
        service->QLowEnergyService::writeCharacteristic(link,QByteArray::fromHex("03"),QLowEnergyService::WriteWithResponse);
        readData(QString("0x03"));
    }
}

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---

Added after 10 minutes:

You can download zip file at below link:
http://www.mediafire.com/download/s4...acteristic.zip

Thanks for your interested.

[anda_skoa]

I had a look at the video and it turns out that the creator is a moron.

He added a new value to a Qt header, which of course makes this compile for his modified Qt but not anyone else.

Just pass the UUID of the characteristic by using one of the QBluetoothUuid constructors.

Cheers,
_

[robotden]

Thank you so much. I fixed the error. Sorry because I spent your time

[anda_skoa]

No problem, that's what the forum is for.

The person who created the video should be apologizing to everyone he's misled

Cheers,
_

[optimus]

hello sir ,
i have the same error ,could you tell me how you solve this error. thank you

[anda_skoa]

i have the same error ,could you tell me how you solve this error

If it is the same error then the same solution applies, no?

Cheers,
_

[optimus]

If it is the same error then the same solution applies, no?

Cheers,
_

I would run the application on linux so it is possible no ?

[anda_skoa]

Yes, Qt supports Bluetooth on Linux.

Cheers,
_

[alexpaul]

No problem, that's what the forum is for.

The person who created the video should be apologizing to everyone he's misled

[marcelomfranca]

Thank you so much. I fixed the error. Sorry because I spent your time

Can you show your code solution ?