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Power Platform Community / Forums / Power Automate / Error in a "Set drop-d...
Power Automate
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Error in a "Set drop-down list value in Window" action

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Hello.

 

Now I'm creating a flow to input a system automatically by PAD.

And I have some difficulity to select a value in a drop-down list. Everytime I run the flow, this error occurs.

 

========================================

Location

Subflow: Main, Action: Set drop-down list value in window

 

Error Message

Failed to perform the requested operation on the drop down list (error while accessing the drop down list)

 

Error Detail

Unable to find a constructor to use for type Microsoft.Flow.RPA.Desktop.UIAutomation.DesktopCore.Exceptions.OptionNotFoundException. A class should either have a default constructor, one constructor with arguments or a constructor marked with the JsonConstructor attribute. Path 'Option', line 1, position 10.: Microsoft.Flow.RPA.Desktop.Modules.SDK.ActionException: ドロップダウン リストで要求された操作を実行できません (ドロップダウン リストへのアクセスでエラーが発生しました) ---> Newtonsoft.Json.JsonSerializationException: Unable to find a constructor to use for type Microsoft.Flow.RPA.Desktop.UIAutomation.DesktopCore.Exceptions.OptionNotFoundException. A class should either have a default constructor, one constructor with arguments or a constructor marked with the JsonConstructor attribute. Path 'Option', line 1, position 10

========================================

 

Although the flow stops with this error, the value I designated in the action is correctly set in the drop-down list.

So, I selected "continue the flow" option instead of "throw error".

Then the flow continues to run without stop, but it takes more than 10 seconds to finish the action. 

Its too long to wait for every loop...

Does anyone know how to solve this problem??

 

Xiaolan_0-1673936122442.png

 

So I set 

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