topic Re: What can cause &quot;Unable to create object class extension COM component&quot; in Data Management Questions https://community.esri.com/t5/data-management-questions/what-can-cause-quot-unable-to-create-object-class/m-p/745773#M41975 <HTML><HEAD></HEAD><BODY><P>Did you ever find a solution to your problem? I trying to export or copy a feature linked annotation layer from SDE to a File GDB and it's crashing on me. This same annotation layer gave me issues when converting some data using Data Interoperability. It seems very similar</P></BODY></HTML> Thu, 01 Nov 2018 20:17:16 GMT CraigPatterson 2018-11-01T20:17:16Z What can cause "Unable to create object class extension COM component" https://community.esri.com/t5/data-management-questions/what-can-cause-quot-unable-to-create-object-class/m-p/745772#M41974 <HTML><HEAD></HEAD><BODY><P>In ArcCatalog 10.6, I'm trying to export the schema of a feature class and its feature-linked annotation class to xml. However the export fails with the error message "Unable to create object class extension COM component".</P><P>&nbsp;I created the feature classes&nbsp;in ArcPro 2.2 and I tried doing the XML export in ArcPro 2.2&nbsp;first, but it doesn't allow me to choose discrete feature classes. I noticed the relationship class (which was created automatically when I created the feature-linked annotation class)&nbsp;doesn't show up in the export GUI.&nbsp;I'm not sure if that's significant.&nbsp;</P><P>Incidentally, I need the xml files for an FME translation.</P><P>Anyone have any ideas what the problem could be? I'm wondering if it's related to Microsoft Component Object Model (COM) - about which I know very little.</P><P></P><P><IMG alt="Shows XML Export error message when trying to export workspace doc for two feature classes" class="image-1 jive-image j-img-original" src="https://community.esri.com/legacyfs/online/417838_FailureToExportToXML.PNG" /></P></BODY></HTML> Thu, 02 Aug 2018 23:09:38 GMT https://community.esri.com/t5/data-management-questions/what-can-cause-quot-unable-to-create-object-class/m-p/745772#M41974 AngelaDeegan 2018-08-02T23:09:38Z Re: What can cause "Unable to create object class extension COM component" https://community.esri.com/t5/data-management-questions/what-can-cause-quot-unable-to-create-object-class/m-p/745773#M41975 <HTML><HEAD></HEAD><BODY><P>Did you ever find a solution to your problem? I trying to export or copy a feature linked annotation layer from SDE to a File GDB and it's crashing on me. This same annotation layer gave me issues when converting some data using Data Interoperability. It seems very similar</P></BODY></HTML> Thu, 01 Nov 2018 20:17:16 GMT https://community.esri.com/t5/data-management-questions/what-can-cause-quot-unable-to-create-object-class/m-p/745773#M41975 CraigPatterson 2018-11-01T20:17:16Z