Add Data Column - Error Message: Object reference not set to an instance of an object

Hi There,
I’m doing training academy Practice 1 - Workbook and Data Tables
I’m stuck with the error shown below, I even downloaded the solution step by step but it won’t work for me, can someone help me, please?

Thank you,

ensure that the datatable is initialized

e.g. set on the variable panel a default value like
new DataTable()


Hi Peter,
Thank you for getting back to me.
I set it up but it doesn’t work for me still. (I’m not sure if I set it up correctly)

this datatable also needs to be initialized in the same way

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Thank you so much, Peter. It works!! :grinning:

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