Is there a bug in this lesson?

EricaPrice

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

XanderBakker

Hi Erica Price 

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

For Arcade you should use:

$feature<SPAN class="punctuation token">[</SPAN><SPAN class="string token">"Count"</SPAN><SPAN class="punctuation token">]</SPAN> <SPAN class="operator token">*</SPAN> <SPAN class="number token">30</SPAN> <SPAN class="operator token">*</SPAN> <SPAN class="number token">30</SPAN>
<SPAN class="comment token">// or</SPAN>
$feature<SPAN class="punctuation token">.</SPAN>Count <SPAN class="operator token">*</SPAN> <SPAN class="number token">30</SPAN> <SPAN class="operator token">*</SPAN> <SPAN class="number token">30</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

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

!Count! <SPAN class="operator token">*</SPAN> <SPAN class="number token">30</SPAN> <SPAN class="operator token">*</SPAN> <SPAN class="number token">30</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN></SPAN>