topic Re: Is there a bug in this lesson? in Esri Tutorials Questions

Is there a bug in this lesson?

EricaPrice — Tue, 11 Aug 2020 03:30:52 GMT

I am doing the lesson Predict floods with unit hydrographs | Learn ArcGIS and on the section for "Create a Unit Hydrograph: Prepare the Unit Hydrograph Table," #13, I am getting this error:

ERROR 002717: Invalid Arcade expression, Arcade error: Semicolon or new line expected, Script line: 1

Failed to execute (CalculateField).

Is there something wrong with the code !Count! * 30 * 30?

Thank you,

Erica

DavidPike — Tue, 11 Aug 2020 10:17:49 GMT

Looks like Python Field Calculator syntax?

I don't use Arcade unfortunately, but the documentation suggests a syntax like:

$feature["fieldname"] * 30 * 30

XanderBakker — Sat, 11 Dec 2021 13:23:10 GMT

David is correct. This is an error in the lesson:

For Arcade you should use:

$feature["Count"] * 30 * 30
// or
$feature.Count * 30 * 30‍‍‍

You can also change it to Python and use the formula mentioned in the lesson:

!Count! * 30 * 30‍

HeatherSmith — Wed, 12 Aug 2020 16:54:07 GMT

Thank you Erica, David, and Xander. We will make this fix for our next lesson release!