What computer operating system is your Premiere Elements 12 running on? Have you updated from 12 to the 12.1 Update? If not, please do so.
Where is this library from where you are importing music files? The iTunes library with iTunes music?
If so, convert the iTunes music in iTunes to the wav version and then import the wav version into the Premiere Elements project.
Please review and consider and then let us know the outcome.
I solved the problem,I didn't realize the files I was trying to import were in M4A format. I converted them to MP3 format via ITunes and they imported just fine. Thanks for the fast reply
Great news. Great job.
Glad to have been of assistance.
thank you so much, i had the same problem yesterday!