<p>After installing Naviate October Release 2025 (2025.26.1), some users are getting the following error message - Revit cannot run the external application "NaviateCore"</p>
<p><img alt="" src="https://cdn.livechat-files.com/api/file/kb/file/10075403/111243977e-38926adfe86332d0dc6f.png"></p>
<ul>
<li>Uninstall all Naviate 2025 programs</li>
<li>Manually remove these two folders:
<ul>
<li>C:\Program Files\Symetri\Naviate\Revit 2025</li>
<li>C:\ProgramData\Symetri\Naviate\Revit 2025</li>
</ul>
</li>
<li>Then install the latest version found here: <a data-auth="NotApplicable" data-linkindex="4" data-olk-copy-source="MessageBody" href="https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmy.symetri.com%2FApplications&amp;data=05%7C02%7Canette.wang%40symetri.com%7C34ccfc3702974bfa709008de8a5b8d22%7C8834f07755e64bc0ace0d4cbc22af0be%7C0%7C0%7C639100322969430500%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&amp;sdata=kqVx0sOi09eHN3FkDywIUl4W3USKgNd1S44Pc6CB9%2Fo%3D&amp;reserved=0" title="Original URL: https://my.symetri.com/Applications. Click or tap if you trust this link." target="_self">https://my.symetri.com/Applications</a></li>
</ul>

After installing Naviate October Release 2025 (2025.26.1), some users are getting the following error message - Revit cannot run the external application "NaviateCore"



 * Uninstall all Naviate 2025 programs
 * Manually remove these two folders:
   * C:\Program Files\Symetri\Naviate\Revit 2025
   * C:\ProgramData\Symetri\Naviate\Revit 2025
 * Then install the latest version found here:

Naviate 2025.26.1 - Revit cannot run the external application "NaviateCore"

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There are no piles available for numbering.

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Revit cannot run the external application "NaviateAC" - FileNotFound help32.png

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