QSslSocket::supportsSsl return false and “qt.network.ssl: No functional TLS backend was found”

[seadark]

I use CLion and QT6.2.4/CMake3.24 to develop my project, the path of OpenSSL is correctly configured in cmakelist, but error shows.

my code is：
qDebug() << "OpenSSL supported:" << QSslSocket::supportsSsl();
qDebug() << QSslSocket::supportsSsl() << QSslSocket::sslLibraryBuildVersionString() <<" , "<< QSslSocket::sslLibraryVersionString();
QNetworkAccessManager *manager = new QNetworkAccessManager();
qDebug() << manager->supportedSchemes();
and the output is：
qt.network.ssl: No functional TLS backend was found
false "" , ""
qt.network.ssl: No functional TLS backend was found
QList("file", "qrc", "http", "data")
this is cmakelist.txt about openssl

cmake building has no error, the main cpp has bug.

[SGaist]

Hi,

Is the path to the OpenSSL libraries part of the PATH environment variable when running your application ?

[seadark]

@SGaist Yes, I have checked it.

[SGaist]

Start your application with the QT_DEBUG_PLUGINS environment variable set to one to see exactly what happens with the plugin.