{"id":393156,"date":"2024-11-07T11:57:11","date_gmt":"2024-11-07T11:57:11","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/act-mechanical-and-workbench-error\/"},"modified":"2024-11-07T11:57:11","modified_gmt":"2024-11-07T11:57:11","slug":"act-mechanical-and-workbench-error","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/act-mechanical-and-workbench-error\/","title":{"rendered":"ACT &#8211; Mechanical and Workbench error"},"content":{"rendered":"<p>&lt;p dir=&#8221;ltr&#8221;&gt;Whenever the customer tries to open Workbench or Ansys Mechanical, he has an error: &#8220;Unexpected error: No such addin configuration&#8221;ACT &#8220;.&#8221;&lt;\/p&gt;&lt;p dir=&#8221;ltr&#8221;&gt;Workbench isn&#8217;t starting. He cannot change or see any settings in Workbench.&lt;\/p&gt;&lt;p dir=&#8221;ltr&#8221;&gt;The problem occurs in Ansys 2024R2, previous versions are working fine. Fluent opens without any problems.&lt;\/p&gt;&lt;p&gt;We&#8217;ve tried together to change the name of the Ansys folder in %appdata% to Ansys_old and also to uninstall and install the Ansys Structures pack, but these actions don&#8217;t give us any results.&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;In Workbench log files, there is information:&lt;\/p&gt;<\/p>\n<pre class=\"aLF-aPX-K0-aPE\">System.ArgumentException: No such addin configuration \"ACT\".\n   at Ansys.Core.Addins.AddinConfigReader.&lt;GetAddinsForConfig&gt;d__12.MoveNext()\n   at Ansys.Core.Addins.AddinConfigReader.&lt;GetAddinsForConfig&gt;d__12.MoveNext()\n   at Ansys.Core.Addins.AddinConfigReader.&lt;GetAddinsForConfig&gt;d__12.MoveNext()\n   at Ansys.Core.Addins.AddinConfigReader.&lt;GetAddinsForConfig&gt;d__12.MoveNext()\n   at Ansys.Core.Addins.AddinManager.LoadFromConfigReader(AddinConfigReader reader, String config, String baseDir)\n   at Ans.Program.Runtime.LoadAddins(RuntimeSettings settings)\nSystem.NullReferenceException: Object reference not set to an instance of an object.\n   at Ans.Program.Runtime.ReturnErrorState(Boolean success)\n   at Ans.Program.Runtime.Initialize(RuntimeSettings settings)<\/pre>\n<p>&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-393156","topic","type-topic","status-publish","hentry","topic-tag-ACTAnsysACTAnsys-1","topic-tag-automationACT-1"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Whenever the customer tries to open Workbench or Ansys Mechanical, he has an error: &quot;Unexpected error: No such addin configuration&quot;ACT &quot;.&quot;Workbench isn&#039;t starting. 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