Don't miss your chance to take the Fabric Data Engineer (DP-600) exam for FREE! Find out how by attending the DP-600 session on April 23rd (pacific time), live or on-demand.
Learn moreJoin the FabCon + SQLCon recap series. Up next: Power BI, Real-Time Intelligence, IQ and AI, and Data Factory take center stage. All sessions are available on-demand after the live show. Register now
Hi
I am getting an error all of a sudden. My dataset has not changed. Help?
let
Source = Indirect,
#"Detected Type Mismatches" = let
tableWithOnlyPrimitiveTypes = Table.SelectColumns(Source, Table.ColumnsOfType(Source, {type nullable number, type nullable text, type nullable logical, type nullable date, type nullable datetime, type nullable datetimezone, type nullable time, type nullable duration})),
recordTypeFields = Type.RecordFields(Type.TableRow(Value.Type(tableWithOnlyPrimitiveTypes))),
fieldNames = Record.FieldNames(recordTypeFields),
fieldTypes = List.Transform(Record.ToList(recordTypeFields), each [Type]),
pairs = List.Transform(List.Positions(fieldNames), (i) => {fieldNames{i}, (v) => if v = null or Value.Is(v, fieldTypes{i}) then v else error [Message = "The type of the value does not match the type of the column.", Detail = v], fieldTypes{i}})
in
Table.TransformColumns(Source, pairs),
#"Added Index" = Table.AddIndexColumn(#"Detected Type Mismatches", "Row Number" ,1),
#"Kept Errors" = Table.SelectRowsWithErrors(#"Added Index", {"Pers.No.", "Name of employee or applicant", "Week", "Receiver WBS Element", "Job code", "Job code description", "A/AType", "Att./abs. type text", "WT", "Long text", "Loc.", "DWSCl", "CSS", "CO Period", "Rev", "Doc. no.", "PA", "Cost Ctr", "Work Order", "Date", "CATS Hours Indirect", "CO Hours", "Unit", "Compensation Type", "WBS", "Asset"}),
#"Reordered Columns" = Table.ReorderColumns(#"Kept Errors", {"Row Number", "Pers.No.", "Name of employee or applicant", "Week", "Receiver WBS Element", "Job code", "Job code description", "A/AType", "Att./abs. type text", "WT", "Long text", "Loc.", "DWSCl", "CSS", "CO Period", "Rev", "Doc. no.", "PA", "Cost Ctr", "Work Order", "Date", "CATS Hours Indirect", "CO Hours", "Unit", "Compensation Type", "WBS", "Asset"})
in
#"Reordered Columns"
Check out the April 2026 Power BI update to learn about new features.
If you have recently started exploring Fabric, we'd love to hear how it's going. Your feedback can help with product improvements.
A new Power BI DataViz World Championship is coming this June! Don't miss out on submitting your entry.
| User | Count |
|---|---|
| 5 | |
| 3 | |
| 3 | |
| 3 | |
| 3 |
| User | Count |
|---|---|
| 7 | |
| 6 | |
| 5 | |
| 5 | |
| 4 |