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Expression error: The name 'Table.TransformColumnNames' wasn't recognized. Make sure it's spelled correctly.|Power Query|Excel Forum|My Online Training Hub

You are here: Home / Expression error: The name 'Table.TransformColumnNames' wasn't recognized. Make sure it's spelled correctly.|Power Query|Excel Forum|My Online Training Hub
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Expression error: The name 'Table.TransformColumnNames' wasn't recognized. Make sure it's spelled correctly.
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Ram Taj

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February 23, 2023 - 8:49 am
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= Table.TransformColumnNames(#"Promoted Headers",each List.Accumulate(Table.ToRecords(Mapping),_,(state,current)=>Text.Replace(state,current[Before],current[After])))

 

Could anyone mention what I am doing wrong. It worked fine before and now it is throwing this error.

 

Thank you.

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Velouria
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February 23, 2023 - 7:44 pm
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If it worked before and now it doesn't, the most likely cause would be an update (windows or Office or Power BI, depending on what you are using this in).

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