Can't import

[AndroidDeveloperLB]

I've found this repository from here: https://codedump.io/share/KmYl6iYk8zzu/1/muxing-aac-audio-with-android39s-mediacodec-and-mediamuxer

I get this error when trying to import :

I tried the various options, but they didn't work.

I just want to search how to mux video and audio, so that the audio will repeat itself within the video in case it's shorter than the video. Wrote about it here: https://stackoverflow.com/q/54769976/878126