requiredGems: reference is ambiguous

[jonas]

Attempting to use requiredGems in the can-use-jekyll sbt-test fails with:

[error] .../can-use-jekyll/build.sbt:13: error: reference to requiredGems is ambiguous;
[error] it is imported twice in the same scope by
[error] import _root_.com.typesafe.sbt.site.nanoc.NanocPlugin.autoImport._
[error] and import _root_.com.typesafe.sbt.site.jekyll.JekyllPlugin.autoImport._
[error] requiredGems := Map(
[error] ^

[LogicalTime]

I saw this error today.