# Visual Studio Extention v4.0.602.0 fails to load after Visual Studio 2026 Feature Update (18.12.0)

**URL:** <https://forum.dotvvm.com/t/visual-studio-extention-v4-0-602-0-fails-to-load-after-visual-studio-2026-feature-update-18-12-0/383>\
**Category:** Discussion in English\
**Created:** [November 14, 2026, 5:25am UTC](https://forum.dotvvm.com/t/visual-studio-extention-v4-0-602-0-fails-to-load-after-visual-studio-2026-feature-update-18-12-0/383 "2026-11-14T05:25:18Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![lsmashnuk](https://forum.dotvvm.com/user_avatar/forum.dotvvm.com/lsmashnuk/32/510_2.png) [@lsmashnuk](https://forum.dotvvm.com/u/lsmashnuk)\
**Post date:** [November 14, 2026, 5:25am UTC](https://forum.dotvvm.com/t/visual-studio-extention-v4-0-602-0-fails-to-load-after-visual-studio-2026-feature-update-18-12-0/383/1 "2026-11-14T05:25:18Z")

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I just upgraded VS 2022 to VS 2026 and the last extention posted (v4.0.602.0) fails to load.