Je suis en train de suivre la leçon Predict floods with unit hydrographs | Learn ArcGIS et dans la section "Create a Unit Hydrograph: Prepare the Unit Hydrograph Table," #13, je reçois cette erreur : ERREUR 002717 : Expression Arcade invalide, erreur Arcade : Point-virgule ou nouvelle ligne attendu, ligne du script : 1 Échec de l'exécution (CalculateField). Y a-t-il un problème avec le code !Count! * 30 * 30 ? Merci, Erica

Hi Erica Price 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

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Y a-t-il un bug dans cette leçon ?

EricaPrice

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Je suis en train de suivre la leçon Predict floods with unit hydrographs | Learn ArcGIS<\/A> et dans la section "Create a Unit Hydrograph: Prepare the Unit Hydrograph Table," #13, je reçois cette erreur : <\/P>

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ERREUR 002717 : Expression Arcade invalide, erreur Arcade : Point-virgule ou nouvelle ligne attendu, ligne du script : 1<\/P>

Échec de l'exécution (CalculateField).<\/P>

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Y a-t-il un problème avec le code !Count! * 30 * 30 ?<\/P>

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Merci,<\/P>

Erica<\/P><\/BODY><\/HTML>

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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>

All comments

HeatherSmith

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

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>

DavidPike

Looks like Python Field Calculator syntax?

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

$feature["fieldname"] * 30 * 30

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