Itunes not playing on my mac

[loulout]

Hi,

I did a back up recently to an external hard drive from my macbook, , however when l went back to my music on my mac and clicked on itunes to play a song, l got the following message.. The song could not be used because the orignal file could not be found. I have 7000 songs and can't play any of them.. Any idea as to what l did wrong or can anyone help in anyway. I'm new to mac, itunes and iphone.

Thanks in advance

Loulout

 

[r.j.s]

Did you accidentally move the files?

Are they actually still in the iTunes Music folder?

 

[loulout]

Did you accidentally move the files?

Are they actually still in the iTunes Music folder?

all my songs are in my itunes folder, just wont play,

thanks

 

[r.j.s]

Rebuild your library