# ERRNO System Variable [GstarCAD 2026](Help%20System/GSTARCAD/2026/Index.md) → [System Variables](Help%20System/GSTARCAD/2026/System%20Variables/(System%20Variables).md) → [E](Help%20System/GSTARCAD/2026/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 can 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. --- [Original help](https://www.gstarcad.net/help/GstarCAD_2026_en-US/detail/systemVariables_Egsv/ERRNO.html) · © Gstarsoft Co., Ltd.