topic Error 00816: Tool is not valid in Geoprocessing Questions https://community.esri.com/t5/geoprocessing-questions/error-00816-tool-is-not-valid/m-p/440286#M14788 <HTML><HEAD></HEAD><BODY><SPAN>I have a custom GP tool that I've written in C# for 10.1.&nbsp; I've compiled it, registered it, used it to build a model, and it runs it desktop.&nbsp; Now I want to publish it as a GP service.&nbsp; I go through that process and it publishes.&nbsp; But it won't run as a published tool.&nbsp; I get the 816 error stating that it's not valid.&nbsp; I've validated it in model builder, I've analyzed it before publishing and those are all fine.&nbsp; What else do I need to do????&nbsp; This model worked in 10.0 but not in 10.1.</SPAN></BODY></HTML> Wed, 05 Jun 2013 20:50:08 GMT DeonaEvans 2013-06-05T20:50:08Z Error 00816: Tool is not valid https://community.esri.com/t5/geoprocessing-questions/error-00816-tool-is-not-valid/m-p/440286#M14788 <HTML><HEAD></HEAD><BODY><SPAN>I have a custom GP tool that I've written in C# for 10.1.&nbsp; I've compiled it, registered it, used it to build a model, and it runs it desktop.&nbsp; Now I want to publish it as a GP service.&nbsp; I go through that process and it publishes.&nbsp; But it won't run as a published tool.&nbsp; I get the 816 error stating that it's not valid.&nbsp; I've validated it in model builder, I've analyzed it before publishing and those are all fine.&nbsp; What else do I need to do????&nbsp; This model worked in 10.0 but not in 10.1.</SPAN></BODY></HTML> Wed, 05 Jun 2013 20:50:08 GMT https://community.esri.com/t5/geoprocessing-questions/error-00816-tool-is-not-valid/m-p/440286#M14788 DeonaEvans 2013-06-05T20:50:08Z Re: Error 00816: Tool is not valid https://community.esri.com/t5/geoprocessing-questions/error-00816-tool-is-not-valid/m-p/440287#M14789 <HTML><HEAD></HEAD><BODY><SPAN>I'd read these topics:</SPAN><BR /><A href="http://resources.arcgis.com/en/help/main/10.1/index.html#//00570000006p000000">http://resources.arcgis.com/en/help/main/10.1/index.html#//00570000006p000000</A><BR /><A href="http://resources.arcgis.com/en/help/main/10.1/#/Deploying_custom_NET_and_C_tools/00570000008p000000/">http://resources.arcgis.com/en/help/main/10.1/#/Deploying_custom_NET_and_C_tools/00570000008p000000/</A></BODY></HTML> Fri, 07 Jun 2013 15:52:08 GMT https://community.esri.com/t5/geoprocessing-questions/error-00816-tool-is-not-valid/m-p/440287#M14789 KevinHibma 2013-06-07T15:52:08Z