Cannot import classes from one module to other one - Scala - scala

Question

I have created a project with 3 different modules. First one is called http and second algebra. I have connected them into one in sbt file, but when I want to use classes from algebra in http then I cannot import them because they do not see each other.
This is my sbt file:
lazy val commonSettings = Seq(
libraryDependencies ++= Seq(
"org.typelevel" %% "cats-core" % CatsVersion,
"org.typelevel" %% "cats-effect" % "1.2.0",
"org.typelevel" %% "cats-tagless-macros" % "0.2.0",
"org.typelevel" %% "cats-mtl-core" % "0.5.0",
)
)
lazy val root = project.in(file(".")).aggregate(http, domain, algebra)
.settings(commonSettings)
.settings(libraryDependencies ++= Seq(
"org.tpolecat" %% "doobie-core" % DoobieVersion,
"org.tpolecat" %% "doobie-h2" % DoobieVersion,
"org.tpolecat" %% "doobie-scalatest" % DoobieVersion,
"org.tpolecat" %% "doobie-hikari" % DoobieVersion,
))
lazy val http = (project in file("http"))
.dependsOn(algebra)
.settings(commonSettings)
.settings(
name := "my-http",
libraryDependencies ++= Seq(
"io.circe" %% "circe-generic" % CirceVersion,
"io.circe" %% "circe-literal" % CirceVersion,
"io.circe" %% "circe-generic-extras" % CirceVersion,
"io.circe" %% "circe-parser" % CirceVersion,
"io.circe" %% "circe-java8" % CirceVersion,
"io.circe" %% "circe-config" % CirceConfigVersion,
"org.http4s" %% "http4s-blaze-server" % Http4sVersion,
"org.http4s" %% "http4s-circe" % Http4sVersion,
"org.http4s" %% "http4s-dsl" % Http4sVersion,
))
lazy val domain = project.in(file("domain"))
lazy val algebra = (project in file("algebra"))
.settings(commonSettings)
.settings(
name := "my-algebra",
)
I tried to refresh all projects but it did not work.
class MyRoutes[F[_]: Effect](services: MyService[F]) extends Http4sDsl[F]{...}
Class MyRoutes is in http module and MyService in algebra module. The error is Cannot find declaration to go to on MyService.
How can I fix it?

Answer 1

Ok, I solved this problem. It was my, stupid mistake. I have not marked directory as source root where is MyService. Because of this, in http module I could not see this class.