Cannot multiply a System.String with a UiPath.Excel.ExcelValue

[J_Li]

I got this error message: Cannot multiply a System.String with a UiPath.Excel.ExcelValue
I checked the cell value in the Excel, they are in numbers value and they work in the excel formula but not in Uipath. This is what I wrote in Uipath:

[Shikhar_Tandon]

Hi @J_Li ,

Welcome to the community!

Are you working on studioX?

Thanks