The result references a model tool that has list variables. List variables are unsupported on ArcGIS Server. Also, this error may be prompted if you are publishing a result with multivalue output parameters with a result map service.
Solution
- If you have list variables, your current workflow is not supported. You must modify your model so it does not use list variables. Most likely, the modification will use an iterator instead of a list variable.
- If you have multivalue output parameters, you can update the tool or disable the result map service option in the Geoprocessing Service properties.