MrpError Error domain for libmrproject. Error codes returned by libmrproject functions. @MRP_ERROR_TASK_RELATION_FAILED: @MRP_ERROR_TASK_MOVE_FAILED: @MRP_ERROR_LOAD_FILE_DONT_EXIST: @MRP_ERROR_LOAD_FILE_INVALID: @MRP_ERROR_SAVE_FILE_EXIST: @MRP_ERROR_SAVE_FILE_CHANGED: @MRP_ERROR_EXPORT_UNSUPPORTED: @MRP_ERROR_EXPORT_FAILED: @MRP_ERROR_NO_FILE_MODULE: @MRP_ERROR_SAVE_WRITE_FAILED: @MRP_ERROR_INVALID_URI: @MRP_ERROR_FAILED: