RPA challenge Error

Hi there ,
I have Task in RPA Challenge (INVOICE EXTRACTION) to complete . I try to complete this task with using simple step and activity , but I’ve Facing some error in
assign activity that I am using an INLINE FUNCTIONS .
guys give some suggestion to solve this error and attach the screenshots and my workflow file.


Invoice Extraction.xaml (43.9 KB)

@SrinivasDev - Can you show the data table with the column ‘Due Date’? I think there’s an entry where r("Due Date").ToString.Trim results in an empty string, and this can’t be converted to a DateTime.

here that I built the Datatable

I mean the Excel file, or let’s say the actual data that you’re processing.

sorry, I am just extract the data from the rpa challenge invoice extraction details using table extraction activity

Can you make the marked column visible?

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thanks
but can you explain me ,
what would i do to solve this error

Please double-click with your mouse exactly where it’s marked. Then, the ‘Due Date’ column should become visible, and we can see what’s written inside.

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