Why doesn't Scalavista see the dependencies set in build.sbt?

Scalavista, or Scala Syntax (official) - these are the Scala extensions I have.

I have in build.sbt e.g.

  , "org.scalatra" %% "scalatra-json" % "latest.integration"

and when I write

import org.scalatra.json._

then it marks it as an error and says object scalatra is not a member of package org. And it's just one example, my code is full of red waves. And that's only in vscode; when I run the program from sbt, it compiles and works OK.

Shouldn't it be aware of the dependencies?