Is there a way in sbt to convert compiler warnings to errors so the build fails?

Question

I want to "ban" some or all compiler warnings.

Accepted Answer

You can pass options from sbt to the scala compiler, including the one that turns warnings into errors.

I usually add these:

```
scalacOptions ++= Seq("-unchecked", "-deprecation", "-feature", "-Xfatal-warnings"),
```

Solution