System.Collections.Generic.IEnumerable does not contain any definition for 'ToList'

You might be getting this error 'System.Collections.Generic.IEnumerable' does not contain any definition for 'ToList' and no extension method 'ToList' accepting a first argument of type 'System.Collections.Generic.IEnumerable' could be found (are you missing a using directive or an assembly reference?).

The solution is in this error itself i.e. "are you missing a using directive". Yes you are missing System.Linq. You have to add using System.Linq to get access to the ToList() function on the current code file.

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