Set current project to default-6c6f02 (in build file:/home/user_name/Videos/<>
This question already has an answer here:
This happens if you call sbt command in the folder where you don't have built. sbtor project/Build.scala, as i understand in your case it's /home/user_name/Videos/. And because you dont' have any build configuration in the current folder, sbt creates a default one. You can fix this easily, just add small build.sbt file with:
name := "project name" version := "0.1"
Please notice the blank line between settings, in build.sbt this is necessary
You don't have to set anything, sbt is telling you it has set the current project to this.