Expression.Error The column 'value' of the table wasn't found.

[Swalker]

Hi,

I am following the TripPin walktrough and get Expression.Error the column 'value' of the table wasn't found  in 2.REST API  - Authoring Transformations in Power Query  in both the Airlines as well as the Airports Query example.

I simply copy paste the M code in the Advanced Editor and then after pressing Done the Expression.Error pops up.

let
    Source = TripPin.Feed("https://services.odata.org/v4/TripPinService/Airlines"),
    value = Source[value],
    toTable = Table.FromList(value, Splitter.SplitByNothing(), null, null, ExtraValues.Error),
    expand = Table.ExpandRecordColumn(toTable, "Column1", {"AirlineCode", "Name"}, {"AirlineCode", "Name"})
in
    expand

Any help appreciated.

[Swalker · Accepted solution]

Problem solved: I forgot to rebuild my solution in Visual Studio , copy the updated *.mez extension file  to my Custom Data Connectors directory and relaunch Power BI Desktop.