# DLL linkage error 

**URL:** <https://discourse.slicer.org/t/dll-linkage-error/22867>\
**Category:** Development\
**Tags:** build\
**Created:** [April 7, 2022, 10:01pm UTC](https://discourse.slicer.org/t/dll-linkage-error/22867 "2022-04-07T22:01:33Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![SiddarthGanesh](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/siddarthganesh/32/14938_2.png) [@SiddarthGanesh](https://discourse.slicer.org/u/SiddarthGanesh)\
**Post date:** [April 7, 2022, 10:01pm UTC](https://discourse.slicer.org/t/dll-linkage-error/22867/1 "2022-04-07T22:01:33Z")

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| Severity | Code | Description | Project | File | Line | Suppression State |
| --- | --- | --- | --- | --- | --- | --- |
| Warning | C4273 | ‘archive\_write\_set\_format\_cpio’: inconsistent dll linkage | C:\v\out\build\x64-Debug\v | C:\v\out\build\x64-Debug\LibArchive\libarchive\archive\_write\_set\_format\_cpio.c | 6 | |

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [April 9, 2022, 10:25am UTC](https://discourse.slicer.org/t/dll-linkage-error/22867/2 "2022-04-09T10:25:22Z")

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This is just a warning, probably it is because libarchive gets into your project from multiple sources. You can ignore it, unless you experience any problems with libarchive.