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GP service: ERROR 000816: The tool is not valid.

Question asked by spring1990 on Jul 14, 2016
Latest reply on Sep 20, 2016 by spring1990

I have successfully published a custom GP service from ArcMap. The GP tool is in C#.  The built DLL was registered in both ArcGIS desktop and server through ESRIRegAsm.  The tool run well in ArcMap. But when i run the service, I got the error "Error executing tool.: ERROR 000816: The tool is not valid." Any idea why?


My ArcGIS server version is 10.4.5524

Desktop version is 10.4.5524

.Net framework version is 4.5.1


PS: I also navigated to the directory on Server: C:\arcgisserver\directories\arcgissystem\arcgisinput\{my service name}.GPServer\extracted\v101..., and run the tool there in ArcMap, it run well.