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couldn't find footage named 'TextProperty', an expression was disabled as a result of an error

New Here ,
May 14, 2021 May 14, 2021

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Hello All,

 

I have a project using jason file. It uses footage and datavalue script to get the value in json file. 

 

json=thisComp.layer("jsonfilename").text.sourceText;
val1=thisComp.layer("a").text.sourceText;
val2=thisComp.layer("b").text.sourceText;
footage(json).dataValue([val1,val2]);

 

But somehow I receive an error "couldn't find footage named 'TextProperty', an expression was disabled as a result of an error" in the 4th line of the script. Please help.

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Adobe Community Professional ,
May 14, 2021 May 14, 2021

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New Here ,
May 17, 2021 May 17, 2021

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Thank you for your advice. 
I am using Adobe CC After Effect 2021. My OS is windows 10 home. I am tyring to use expression in after effect but not working. 

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Adobe Community Professional ,
May 17, 2021 May 17, 2021

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To ask in the forum for your program please start at https://community.adobe.com/

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