qt.network.ssl: QSslSocket: cannot resolve SSLv2_client_method

hiren21

I am trying to POST request to remote server. Here is my code:

void LoginWindow::on_login_pushButton_clicked()
{
    const QString url = ui->server_lineEdit->text ();
    const QString username = ui->username_lineEdit->text ();
    const QString password = ui->password_lineEdit->text ();
    QNetworkAccessManager mAccessManager;
    QNetworkRequest request(QUrl(url + "/api/auth/"));

    QUrlQuery urlQuery;
    urlQuery.addQueryItem ("username", username);
    urlQuery.addQueryItem ("password", password);

    QUrl params;
    params.setQuery (urlQuery);

    QNetworkReply* reply = mAccessManager.post (request, params.toEncoded ());

    connect (reply, &QNetworkReply::readyRead, [reply]() {
        qDebug()  << "Ready to read from reply";
    });
    connect (reply, &QNetworkReply::sslErrors, [this] (QList<QSslError> error) {
        qWarning () << "Ssl error: " << error;
    });

}

Everytime I clicked the login button nothing happens, except a message in application output tab.

qt.network.ssl: QSslSocket: cannot resolve SSLv2_client_method
qt.network.ssl: QSslSocket: cannot resolve SSLv2_server_method

I am using ubuntu 16.04 and Qt 5.9 . Here is a similar problem in the forum. I also installed libssl-0.98 , but still no luck.

SGaist

Hi,

What exact version of OpenSSL are you using ?

What error message did you get in your application if any ?

hiren21

Here is the output of QSslSocket::sslLibraryBuildVersionString() OpenSSL 1.0.1e-fips 11 Feb 2013

SGaist

One of the reasons of that kind of message is that the version loaded at runtime differs from the one used at building time.

hiren21

So any idea how do I solve the problem ? I can't make any GET or POST request from qt.

SGaist

What is the version of OpenSSL you are currently using on your system ?

How did you install Qt ?

What exact version is it ?

hiren21

I am noob in Qt so I think my code is not correct . I installed Qt 5.9.0. from official offline installer and openssl version is OpenSSL 1.0.2g 1 Mar 2016

SGaist

Then first check with the distribution provided Qt so you'll be sure whether it's your code that has a problem.

Kien Bui

I'm having this problem
Qt version: 5.6
Ubuntu 14.04
OpenSSL: OpenSSL 1.0.1f 6 Jan 2014
Before I used Qt 5.2 and don't get this problem.
How to build to app don't show this warning.