When trying to download Hydra on a Scala version we don't support (e.g., 2.11.7) the error "Could not determine Scala version in this project" is reported. That should be changed into "Hydra $hydraVersion doesn't support the project's Scala version ($projectScalaVersion)" or similar.
By specifying the $hydraVersion in the error message we are also improving the experience when a user attempts to use a old Hydra version on a version of Scala that was released after the specified Hydra version.
When trying to download Hydra on a Scala version we don't support (e.g., 2.11.7) the error "Could not determine Scala version in this project" is reported. That should be changed into "Hydra $hydraVersion doesn't support the project's Scala version ($projectScalaVersion)" or similar.
By specifying the $hydraVersion in the error message we are also improving the experience when a user attempts to use a old Hydra version on a version of Scala that was released after the specified Hydra version.