i followed the steps above to restore my i tunes library from an external drive. It worked and i can see my playlist. However when I try to play a song it says the file cannot be found would u like to locate it. Can anyone tell me what I'm doing wrong ?

I followed the steps to restore my i tunes library from an external drive. It worked and i can see my playlist. However when I try to play a song it says the file cannot be found would u like to locate it. Can anyone tell me what I'm doing wrong ?i followed the steps above to restore my i tunes library from an external drive. It worked and i can see my playlist. However when I try to play a song it says the file cannot be found would u like to locate it. Can anyone tell me what I'm doing wrong ?