https://community.esri.com/t5/arcgis-pro-sdk-questions/why-am-i-getting-the-error-quot-the-function/m-p/1432461#M11509 <P>I am trying to rerun a script that I ran previously successfully, but now, I keep getting the error,&nbsp;"The function evaluated requires all thread to run" at the "management.AddIndex" method. There is probably a better way of writing the geoprocessing methods below, but I am relatively new at creating Add-In using the ArcGIS Pro SDK v2.8. Please see the script below:&nbsp;</P><LI-CODE lang="csharp"> var args2 = Geoprocessing.MakeValueArray(filePath, outGDB, fieldTable); GPRun("conversion.TableToTable", args2); //Create index to the field table - Error occurs here var ipara = Geoprocessing.MakeValueArray(fieldTable, "mukey", "tableIndex"); GPRun("management.AddIndex", ipara); public async void GPRun(string GPTool, IReadOnlyList&lt;string&gt; parameters) { var gp_result = await Geoprocessing.ExecuteToolAsync(GPTool, parameters); if (gp_result.IsFailed) { if (gp_result.Messages.Count() != 0) { Geoprocessing.ShowMessageBox(gp_result.Messages, "GP Messages", gp_result.IsFailed ? GPMessageBoxStyle.Error : GPMessageBoxStyle.Default); } else { MessageBox.Show("Error in running the Geoprocessing Tool: " + GPTool + ", please check parameters.", "Geoprocessing Error"); } } }</LI-CODE><P>&nbsp;Thanks for your help!</P> Fri, 10 May 2024 16:10:01 GMT tzz_12 2024-05-10T16:10:01Z https://community.esri.com/t5/arcgis-pro-sdk-questions/why-am-i-getting-the-error-quot-the-function/m-p/1432461#M11509 <P>I am trying to rerun a script that I ran previously successfully, but now, I keep getting the error,&nbsp;"The function evaluated requires all thread to run" at the "management.AddIndex" method. There is probably a better way of writing the geoprocessing methods below, but I am relatively new at creating Add-In using the ArcGIS Pro SDK v2.8. Please see the script below:&nbsp;</P><LI-CODE lang="csharp"> var args2 = Geoprocessing.MakeValueArray(filePath, outGDB, fieldTable); GPRun("conversion.TableToTable", args2); //Create index to the field table - Error occurs here var ipara = Geoprocessing.MakeValueArray(fieldTable, "mukey", "tableIndex"); GPRun("management.AddIndex", ipara); public async void GPRun(string GPTool, IReadOnlyList&lt;string&gt; parameters) { var gp_result = await Geoprocessing.ExecuteToolAsync(GPTool, parameters); if (gp_result.IsFailed) { if (gp_result.Messages.Count() != 0) { Geoprocessing.ShowMessageBox(gp_result.Messages, "GP Messages", gp_result.IsFailed ? GPMessageBoxStyle.Error : GPMessageBoxStyle.Default); } else { MessageBox.Show("Error in running the Geoprocessing Tool: " + GPTool + ", please check parameters.", "Geoprocessing Error"); } } }</LI-CODE><P>&nbsp;Thanks for your help!</P> Fri, 10 May 2024 16:10:01 GMT https://community.esri.com/t5/arcgis-pro-sdk-questions/why-am-i-getting-the-error-quot-the-function/m-p/1432461#M11509 tzz_12 2024-05-10T16:10:01Z