Footstep Scipt, (What is wrong?)

When I try and compile your code, I don't get that specific error. Is is possible you have a Footsteps class in your project? Anyway, the only issue I see is on line 12. You want 'footsteps' with a lower case 'f' in the two places you use 'Footsteps' in this line of code. Youalso want to return null instead of '0'.

 using UnityEngine;
 using System.Collections;
 
 public class Bug25a : MonoBehaviour {
 
     public AudioClip[] footsteps;
     public float nextFoot;
 
     IEnumerator Start () {
         CharacterController controller = GetComponent<CharacterController> ();
         
         while (true) {
             if(controller.isGrounded && controller.velocity.magnitude > 0.3F)
             {
                 audio.PlayOneShot(footsteps[Random.Range(0, footsteps.Length)]);
                 yield return new WaitForSeconds(nextFoot);
                 
             }
             else
             { 
                 yield return null;
             }
         }
     }
 }

 

I got the answer but in JavaScript... If its any help here it is:

 #pragma strict
  
 var walk : AudioClip;
 var run : AudioClip;
  
 var isWalking : boolean = false;
 var isRunning : boolean = false;
  
  
 function Update()
 {
 GetState();
 PlayAudio();
 }
  
  
 function GetState()
 {
 if ( Input.GetAxis( "Horizontal" ) || Input.GetAxis( "Vertical" ) )
 {
 if ( Input.GetKey( "left shift" ) || Input.GetKey( "right shift" ) )
 {
 // Running
 isWalking = false;
 isRunning = true;
 }
 else
 {
 // Walking
 isWalking = true;
 isRunning = false;
 }
 }
 else
 {
 // Stopped
 isWalking = false;
 isRunning = false;
 }
 }
  
  
 function PlayAudio()
 {
 if ( isWalking )
 {
 if ( audio.clip != walk )
 {
 audio.Stop();
 audio.clip = walk;
 }
  
 if ( !audio.isPlaying )
 {
 audio.Play();
 }
 }
 else if ( isRunning )
 {
 if ( audio.clip != run )
 {
 audio.Stop();
 audio.clip = run;
 }
  
 if ( !audio.isPlaying )
 {
 audio.Play();
 }
 }
 else
 {
 audio.Stop();
 }
 }