# Developer tools for extensions is failing for preview

**URL:** <https://discourse.slicer.org/t/developer-tools-for-extensions-is-failing-for-preview/21324>\
**Category:** Support\
**Created:** [January 4, 2022, 12:21am UTC](https://discourse.slicer.org/t/developer-tools-for-extensions-is-failing-for-preview/21324 "2022-01-04T00:21:39Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Post date:** [January 4, 2022, 12:21am UTC](https://discourse.slicer.org/t/developer-tools-for-extensions-is-failing-for-preview/21324/1 "2022-01-04T00:21:39Z")

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It is failing on all three platform. Looks like there is a configuraiton issue:  
[https://slicer.cdash.org/build/2539448](https://slicer.cdash.org/build/2539448)

@Sam_Horvath @jcfr

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**Author:** ![jamesobutler](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jamesobutler/32/7511_2.png) [@jamesobutler](https://discourse.slicer.org/u/jamesobutler)\
**Post date:** [January 4, 2022, 2:33am UTC](https://discourse.slicer.org/t/developer-tools-for-extensions-is-failing-for-preview/21324/2 "2022-01-04T02:33:41Z")

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@lassoan changed out the icon ExtensionStats.png for ExtensionStats.svg in [Fix ExtensionStats copy to table · Slicer/SlicerDeveloperToolsForExtensions@bbe7eec · GitHub](https://github.com/Slicer/SlicerDeveloperToolsForExtensions/commit/bbe7eec74a3f8ca1d683f28f066a182b0edea02f) which caused the configuration error of the ExtensionStats module.

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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:** [January 11, 2022, 7:47pm UTC](https://discourse.slicer.org/t/developer-tools-for-extensions-is-failing-for-preview/21324/3 "2022-01-11T19:47:31Z")

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The icon has been [fixed](https://github.com/Slicer/SlicerDeveloperToolsForExtensions/commit/5c3adeb4f1d26630162e5efefd32e204c8497940), let me know if there are still issues.