# ERRNO System Variable [GstarCAD 2019](Help%20System/GSTARCAD/2019/Index.md) → [System Variables](Help%20System/GSTARCAD/2019/System%20Variables/(System%20Variables).md) → [E](Help%20System/GSTARCAD/2019/System%20Variables/E/(E).md) ## Function Description: The ERRNO system variable is used to display corresponding error numbers when detected errors leading by loading LISP functions. (Read-Only) | | | | --- | --- | | Type | Integer | | Saved in | Not saved | | Initial value | 0 | Users could use ERRNO command by GETVAR command to check the current value of ERRNO. The ERRNO system variable is not always zero. It is suppressed zero when starting or opening a drawing. --- ## Other versions with matching text [GstarCAD 2016](../../../2016/System%20Variables/E/ERRNO%20System%20Variable.md) · [GstarCAD 2017](Help%20System/GSTARCAD/2017/System%20Variables/E/ERRNO%20System%20Variable.md) · [GstarCAD 2018](Help%20System/GSTARCAD/2018/System%20Variables/E/ERRNO%20System%20Variable.md) · [GstarCAD 2020](Help%20System/GSTARCAD/2020/System%20Variables/E/ERRNO%20System%20Variable.md) · [GstarCAD 2021](Help%20System/GSTARCAD/2021/System%20Variables/E/ERRNO%20System%20Variable.md)