私はレッスン Predict floods with unit hydrographs | Learn ArcGIS を行っており、「Create a Unit Hydrograph: Prepare the Unit Hydrograph Table」のセクション、#13で、次のエラーが発生しています: ERROR 002717: 無効なArcade式、Arcadeエラー: セミコロンまたは改行が必要です、スクリプト行: 1 （CalculateField）の実行に失敗しました。コード !Count! * 30 * 30 に何か問題がありますか？ありがとうございます。 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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このレッスンにバグがありますか？

EricaPrice

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私はレッスン Predict floods with unit hydrographs | Learn ArcGIS<\/A> を行っており、「Create a Unit Hydrograph: Prepare the Unit Hydrograph Table」のセクション、#13で、次のエラーが発生しています: <\/P>

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ERROR 002717: 無効なArcade式、Arcadeエラー: セミコロンまたは改行が必要です、スクリプト行: 1<\/P>

（CalculateField）の実行に失敗しました。<\/P>

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コード !Count! * 30 * 30 に何か問題がありますか？<\/P>

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ありがとうございます。<\/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>

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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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