The name 'Transform' does not denote a valid type ('not found'). Did you mean 'System.Net.Mime.TransferEncoding'? (BCE0018)

Hi all, I am new to game development, I am learning unity from http://www.vtc.com and when i came to scripting part it started giving me errors

D:\My Unity Projects\Tuts\Assets\Standard Assets\Character Controllers\Sources\Scripts\CharacterMotor.js(1,1): Error BCE0021: Namespace 'UnityEditor' not found, maybe you forgot to add an assembly reference? (BCE0021) (Assembly-UnityScript-firstpass) D:\My Unity Projects\Tuts\Assets\Scripts\Respawn.js(13,13): Error BCE0005: Unknown identifier: 'Transform'. (BCE0005) (Respawn)

I never touched CharacterMotor.js but i started giving errors, and in my script respawn the I am not able to use Transform. Please help me.

edit(copied from comment)

It's a simple script:

function Update ()
{
    if (Transform.Position.y < -10)
    {
        print(Transform.Position.y);
    }
    if (Transform.Position.y < -20)
    {
        Transform.Position.x = 0;
        Transform.Position.y = 2; 
        Transform.Position.z = 0; 
    }
}