Expression.Error: We cannot convert a value of type Function to type Number.

Hi  Anonymous , 

As far as I know "each not Text.Contains([A], "some1") and [B]<0" part works as a function.

As  HotChilli mentioned Table.RemoveRows will use number in second part. 

Table.RemoveRows(table as table, offset as number, optional count as nullable number) as table

Table.SelectRows will use function in second part. So I suggest you to use Table.SelectRows in your code, it will work.

Table.SelectRows(table as table, condition as function) as table

My Sample: 

Result is as below.

M Code:

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WCs7PTTVU0lEyVIrVgfCMgDxdCNcRJqtrDJc2BnKBvFgA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [A = _t, B = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"A", type text}, {"B", Int64.Type}}),
    #"Remove rows" = Table.SelectRows(#"Changed Type", each not Text.Contains([A], "some1") and [B]<0)
in
    #"Remove rows"

Best Regards,
Rico Zhou

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