Compilation failed: error while loading AnnotatedElement, ConcurrentMap, CharSequence from Java 8 under Scala 2.10?

Question

I\'m using the following:

• Scala 2.10.4
• Scalatra 2.2.2
• sbt 0.13.0
• java 1.8.0
• casbah 2.7.2
• scalatra-sbt 0.3.5
<

Answer 1

In my company we had this problem with CharSequence. This is due to Scala 2.10.x does not work with Java 8. This was described in Scalas mailinglist. Switch back to Java 7.