Tools that use VB expressions, such asCalculate Field, cannot use VB expressions in 64-bit ArcGIS products (ArcGIS Server, Background Geoprocessing (64-bit), and ArcGIS Runtime).
Solution
You must modify your task to make use of a supported expression type, such as Python.
Geoprocessing services and packages built for ArcGIS Runtime can use the following instructions to update the task.
- Remove the task from the Service Editor.
- Edit the original tool.
- Replace the VB expression with an equivalent Python expression.
- Rerun the tool to create a new result.
- Add the result back into the Service Editor and continue the sharing process.
Tools executed in 64-bit Background Processing need to be rerun using a Python expression.