The error “QSqlDatabase: QMYSQL driver not loaded” indicates that the MySQL database driver is not properly installed or accessible by your application.
To resolve this issue, you can follow these steps:
Ensure that the MySQL client library is installed on your system. If it’s not installed, you need to install it.
Make sure that you have the appropriate Qt plugin for MySQL. This plugin usually comes with the Qt installation, but in some cases, you may need to build it manually. Refer to the Qt documentation for instructions on building and installing the MySQL plugin.
Check if the necessary driver DLL file (e.g., qsqlmysql.dll) is present in your application’s directory or in a location where Qt can find it.
Set the environment variable
QT_PLUGIN_PATHto include the path to the directory containing the MySQL plugin DLL file(s). This ensures that Qt can locate and load the MySQL driver at runtime.
If you have already performed these steps and are still encountering issues, make sure that your application is linking against the correct version of Qt libraries and double-check any platform-specific dependencies.
Remember to restart your application after making any changes to ensure they take effect.
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