Playing Queued Animation Freezes Unity, Causes Error

Hi,

I am trying to play a queued animation for a character in a javascript file, which causes Unity to freeze for approximately 20 seconds. Every time I attempt to play the queued animation after that, the game throws an error:

MissingComponentException: There is no 'Animation' attached to the "basketball2" game object, but a script is trying to access it. You probably need to add a [sic] Animation to the game object "basketball2". Or your script needs to check if the component is attacked before using it.

I have a .fbx model with animations that was imported into my game, and I have assigned labels to the animations, as well as made sure to click the "Import Animation" checkbox in the Import settings. This is the code I am using to play the queued animation:

 //more up here
 //...
 
 function Update()
 {
     if(Input.GetButtonDown("Player1") && canControl1)
     {
         player1.animation.PlayQueued("aim");
     }
 
     if(Input.GetButtonDown("Player2") && canControl2)
     {
         player2.animation.PlayQueued("aim");
     }
 
     if(Input.GetButtonDown("Player3") && canControl3)
     {
         player3.animation.PlayQueued("aim");
     }
 }

I am certain that I have an animation that is labeled "aim", that (I assume) was imported with the .fbx model.

I am running Unity 4 in Windows 8. If anyone has any idea as to what could be happening, I would love to hear it.