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Cannot run SQL in release mode, but I can in debug mode..

  • I am using Visual Studio 19. In release mode, the program gives warning like this:

    QSqlDatabase: QPSQL driver not loaded
    QSqlDatabase: available drivers:
    Could not open connection!
    "Driver not loaded Driver not loaded"

    However it works pretty well in debug mode. How can I solve this problem?

  • @Baturtoraman
    Start by setting environment variable QT_DEBUG_PLUGINS=1 and then running your program. See if that gives you more information about why it seemingly cannot find the driver in Release build though it can in Debug build.

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