Error Code Portal
MicrosoftWindows Win32Error code

14021

ERROR_SXS_DUPLICATE_DLL_NAME

Alternative forms: 0x000036C5 · 0x36C5 · ERROR_SXS_DUPLICATE_DLL_NAME · 0x800736C5

What does this code mean?

Code 14021 · An issue reported by Windows Win32.

Official explanation · Original text

Two or more components referenced directly or indirectly by the application manifest have files by the same name.

Troubleshooting and diagnostic links

First check that the document's product, version, and environment match your situation.

Source and terms of use

System Error Codes (12000-15999) (WinError.h) ↗

Creator: Microsoft and MicrosoftDocs contributors
License: Creative Commons Attribution 4.0 International
Checked on: 2026-11-12

Modifications: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

Source details · Original licenses and notices