I have done this before in Live 9, but now something has changed, I can no longer import the same exact mp3 I did before... 
Adding Serum into Ableton Install Serum from the Splice desktop client (Windows users need to take note of the installation destination, by default under the User’s Documents folder). To get Serum up and running in Ableton you need to check Ableton's AU/VST settings. Aug 09, 2013 Live 9 will not allow me to drag mp3 to audio track. Discussion of music production, audio, equipment and any related topics, either with or without Ableton Live. So just restarted Live 9, and it worked, but now Ableton Index.exe wont work dont know what the hell that's about and its says it's missing.?!? Live 9 will not allow me to.
I did not need to convert this before, all I did was drag a track from Itunes into an audio track in Live 9, now it wont let me .. what should i do damnit???
I cant even drag an audio clip into session view or arrangement from my library now..... what gives>/? anyone else ?