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518 PointsHelp needed please! "'List' could not be found" error!
Please help and thanks in advance! Everything looks okay so far, but it keeps giving me the following error:
MathHelpers.cs(5,23): error CS0246: The type or namespace name List' could not be found. Are you missing
System.Collections.Generic' using directive?
Compilation failed: 1 error(s), 0 warnings
namespace Treehouse.CodeChallenges
{
public static class MathHelpers
{
public static List<int> GetPowersOf2 (int input)
{
List<int> powerfulList = new List<int>();
for (int i=0; i <= input; i++)
{
int GetPowersOf2 = System.Math.Pow(2, i);
powerfulList.Add(GetPowersOf2);
}
return powerfulList;
}
}
}
1 Answer
jb30
44,806 PointsTry adding using System.Collections.Generic;
before the class MathHelpers
, since List
is from that namespace.
Scott Kim
518 PointsScott Kim
518 PointsThanks again JB!! Wasn't sure the details about the System.Collections.Generic and had to explicitly convert System.Math.Pow(2, i) to int (which I wasn't quite getting why; it seems to register it as double?), but ended up going through it. Thank you thank you!