Estou fazendo a lição Predict floods with unit hydrographs | Learn ArcGIS e na seção "Create a Unit Hydrograph: Prepare the Unit Hydrograph Table," #13, estou recebendo este erro: ERRO 002717: Expressão Arcade inválida, erro Arcade: Ponto e vírgula ou nova linha esperado, Linha do script: 1 Falha ao executar (CalculateField). Há algo errado com o código !Count! * 30 * 30? Obrigado, 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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Há um erro nesta lição?

EricaPrice

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Estou fazendo a lição Predict floods with unit hydrographs | Learn ArcGIS<\/A> e na seção "Create a Unit Hydrograph: Prepare the Unit Hydrograph Table," #13, estou recebendo este erro: <\/P>

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ERRO 002717: Expressão Arcade inválida, erro Arcade: Ponto e vírgula ou nova linha esperado, Linha do script: 1<\/P>

Falha ao executar (CalculateField).<\/P>

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Há algo errado com o código !Count! * 30 * 30?<\/P>

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Obrigado,<\/P>

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

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Accepted answers

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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