Lead Discovery Premium: Error "No module named 'df.data_transfer'" is produced when running data function

Problem:

Following error message is produced when data function in Lead Discovery Premium is executed.

Script data function

Error ModuleNotFoundError: No module named 'df.data_transfer'
Request id 660c4dea-a8a4-40e5-8be4-b39f08573893 in C:\Users\User\AppData\Local\Temp\ChemChartsDataFxns\jobs\660c4dea-a8a4-40e5-8be4-b39f08573893 failed.

at PublisherCore.CPythonExecutor.RunLocalPython(DataFxnRequest request, DataFunctionInvocation invocation, CancellationToken token, PythonManager pythonManager)
at PublisherCore.CPythonExecutor.Run(DataFxnRequest request, DataFunctionInvocation invocation, CancellationToken token, PythonManager pythonManager)
at PublisherCore.CPythonExecutor.Run(DataFxnRequest request, DataFunctionInvocation invocation, CancellationToken token)
at ChemistryService.DataFxnExecutorBase.<ExecuteFunctionCore>d__1.MoveNext()

Resolution:

The error message implies that temporary repository created by ScriptSync under %temp% folder is corrupt. To resolve the error, delete the following folders and restart Spotfire Analyst.

• %temp%\ChemChartsDataFxns
• %temp%\ScriptSync

e.g.

• C:\Users\myuser\AppData\Local\Temp\ChemChartsDataFxns
• C:\Users\myuser\AppData\Local\Temp\ScriptSync

If the error occurs intermittenly then consider tuning your security software so that it does not block LDP from saving temporary Python files to above folder.