Sorting Arrays results in weird error

[ProjectCryken]

When trying to sort an array of GameObjects with Array.Sort I get this:

InvalidOperationException: No IComparable or IComparable interface found.
System.Array.compare[Object] (System.Object value1, System.Object value2, IComparer1 comparer) (at /Applications/buildAgent/work/b59ae78cff80e584/mcs/class/corlib/System/Array.cs:1755) System.Array.qsort[Object,Object] (System.Object[] keys, System.Object[] items, Int32 low0, Int32 high0, IComparer1 comparer) (at /Applications/buildAgent/work/b59ae78cff80e584/mcs/class/corlib/System/Array.cs:1721)
System.Array.Sort[Object,Object] (System.Object keys, System.Object items, Int32 index, Int32 length, IComparer1 comparer) (at /Applications/buildAgent/work/b59ae78cff80e584/mcs/class/corlib/System/Array.cs:1674) Rethrow as InvalidOperationException: The comparer threw an exception. System.Array.Sort[Object,Object] (System.Object[] keys, System.Object[] items, Int32 index, Int32 length, IComparer1 comparer) (at /Applications/buildAgent/work/b59ae78cff80e584/mcs/class/corlib/System/Array.cs:1677)
System.Array.Sort[Object] (System.Object array, Int32 index, Int32 length) (at /Applications/buildAgent/work/b59ae78cff80e584/mcs/class/corlib/System/Array.cs:1608)
System.Collections.ArrayList.Sort () (at /Applications/buildAgent/work/b59ae78cff80e584/mcs/class/corlib/System.Collections/ArrayList.cs:3185)
UnityScript.Lang.Array.Sort ()
EnemyMoveScript.Start () (at Assets/Scripts/EnemyMoveScript.js:11)

[whydoidoit]

Firstly - don’t use Array use List or a native array (see this)

Secondly - how are you expecting them to sort anyway? You need to be able to specify the sort order:

    var list : List.<GameObject>;
    ...
    list.Sort( function(gameObject1, gameObject2) return 0); //Actually return 0, 1 or -1 depending on the sort order you want
    list.Sort( function(gameObject1, gameObject2) return gameObject1.transform.x > gameObject2.transform.x ? 1 : -1); //Example