追記 akkaとakkaHTTPを最新にしてみたら動いた diff --git a/chapter-up-and-running/build.sbt b/chapter-up-and-running/build.sbt index 1d6c95a..4e10c25 100644 --- a/chapter-up-and-running/build.sbt +++ b/chapter-up-and-running/build.sbt @@ -7,…