Troubleshooting You can determine the source of issues by examining the error messages produced by the Genero Report Engine. You can also report issues to support. Genero Report Engine error messages A list of Genero Report Engine (GRE) error messages. For messages that are not self-explanatory, additional information is provided. Framework error messages Error messages at the framework level can apply to various components of Genero Studio. Each component also maintains their own set of error messages. Report an issue to support Use the GREDATAFILE environment variable to generate debug information that you can use in a support ticket.