i want to add a music file in mpeg4 in premiere 12, and get:
error adding media: Audio. m4a - when importing a generic error has occurred, thanks for help
Premiere Elements 12 on what computer operating system? Have you updated 12 to the 12.1 Update yet using an opened project's Help Menu/Updates. Please do that.
But, to your immediate question....
Is your music from iTunes? Please convert your file to the WAV version using iTunes and then import that WAV version into the Premiere Elements project using the Premiere Elements Add Media/Files and Folders.
If you need help with the iTunes how to for the conversion, please ask.
We will be watching for your details and results as your schedule permits.