topic Layers is not getting loaded in 10.7.1 in ArcObjects SDK Questions https://community.esri.com/t5/arcobjects-sdk-questions/layers-is-not-getting-loaded-in-10-7-1/m-p/2896#M87 <HTML><HEAD></HEAD><BODY><P>I am getting the error "A Subscription cannot be stored unless its event class already exists." while I am trying to load charts on the Base map in ArcGIS 10.7.1 .&nbsp; Layer is getting loaded in 10.6.1 but same code is not working in 10.7.1 when I change the config.esriaddinx file :&nbsp;</P><P></P><P>&lt;Targets&gt;<BR /> &lt;Target name="Desktop" version="10.6" /&gt;<BR /> &lt;Target name="Desktop" version="10.7" /&gt;<BR /> &lt;/Targets&gt;<BR /> &lt;AddIn language="CLR" library="ArcsForGISESRI1061.dll" namespace="ArcsForGISESRI1061"&gt;</P></BODY></HTML> Tue, 04 Aug 2020 05:10:00 GMT Rutuparna_Panda 2020-08-04T05:10:00Z Layers is not getting loaded in 10.7.1 https://community.esri.com/t5/arcobjects-sdk-questions/layers-is-not-getting-loaded-in-10-7-1/m-p/2896#M87 <HTML><HEAD></HEAD><BODY><P>I am getting the error "A Subscription cannot be stored unless its event class already exists." while I am trying to load charts on the Base map in ArcGIS 10.7.1 .&nbsp; Layer is getting loaded in 10.6.1 but same code is not working in 10.7.1 when I change the config.esriaddinx file :&nbsp;</P><P></P><P>&lt;Targets&gt;<BR /> &lt;Target name="Desktop" version="10.6" /&gt;<BR /> &lt;Target name="Desktop" version="10.7" /&gt;<BR /> &lt;/Targets&gt;<BR /> &lt;AddIn language="CLR" library="ArcsForGISESRI1061.dll" namespace="ArcsForGISESRI1061"&gt;</P></BODY></HTML> Tue, 04 Aug 2020 05:10:00 GMT https://community.esri.com/t5/arcobjects-sdk-questions/layers-is-not-getting-loaded-in-10-7-1/m-p/2896#M87 Rutuparna_Panda 2020-08-04T05:10:00Z Re: Layers is not getting loaded in 10.7.1 https://community.esri.com/t5/arcobjects-sdk-questions/layers-is-not-getting-loaded-in-10-7-1/m-p/2897#M88 <HTML><HEAD></HEAD><BODY><P>I successfully solve it. Actually the problem is in Geoserver. My Geoserver was crashed that's why the error has occurred.</P></BODY></HTML> Fri, 07 Aug 2020 06:30:28 GMT https://community.esri.com/t5/arcobjects-sdk-questions/layers-is-not-getting-loaded-in-10-7-1/m-p/2897#M88 Rutuparna_Panda 2020-08-07T06:30:28Z