Error sing datatables and arrays since 2021.10 update

I get this error whenever i use datatables or arrays since the 2021.10 update:

Expression Activity type ‘VisualBasicValue`1’ requires compilation in order to run. Please ensure that the workflow has been compiled.

Not sure what is causing it.

Would be helpful if you post the code of your project so that the community could help you with greater clarity.



Hi the error would be thrown once I used a read range (as it outputs to a datatable) or whenever my sequence would use an array. I realized that this only occurred when my compatibility was set to Windows. On flows where my compatibility is set to windows - legacy (I am on windows 10) it works fine.

I believe this is this the Workbook Read Range activity?

If yes, does your file path ends with .xlsx
And does the delivered_reports_filepath variable value end with a blackslash ""
Finally, do the date formats in the actual files match with the format used in the DateTime conversion in your expression?

Example “MM/dd/yyyy” is a legal date format, but may not be legal in a file name, especially in legacy systems.


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