You are viewing the documentation for the 2.4.0-RC3 development release. The latest stable release series is 3.0.x.
§Play Slick FAQ
§A binding to play.api.db.DBApi was already configured
If you get the following exception when starting your Play application:
1) A binding to play.api.db.DBApi was already configured at play.api.db.slick.evolutions.EvolutionsModule.bindings:
Binding(interface play.api.db.DBApi to ConstructionTarget(class play.api.db.slick.evolutions.internal.DBApiAdapter) in interface javax.inject.Singleton).
at play.api.db.DBModule.bindings(DBModule.scala:25):
Binding(interface play.api.db.DBApi to ProviderConstructionTarget(class play.api.db.DBApiProvider))
It is very likely that you have enabled the jdbc plugin, and that doesn’t really make sense if you are using Slick for accessing your databases. To fix the issue simply remove jdbc from your project’s build libraryDependencies.
Another possibility is that there is another Play module that is binding DBApi to some other concrete implementation. This means that you are still trying to use Play Slick together with another Play module for database access, which is likely not what you want.