scala – 使用Mockito和Specs2时出错

import org.specs2.mock.Mockito
import org.specs2.mutable.Specification

class LinkUserServiceSpec extends Specification with Mockito {

  val linkUserService = mock[LinkUserService]

  "The 'LinkUserService' isUserLinked method" should {
      "return false when a previously unlinked userId is passed in for a given service" in {
          linkUserService.isUserLinked("nobody","YT") returns false

          linkUserService.isUserLinked("nobody","YT") must beFalse
      }
  }
}

以及我的build.sbt中的以下依赖项：

“org.specs2”%%“specs2”％“2.2”％“test”

但是当我在sbt控制台中键入test时出现此错误：

[error] bad symbolic reference. A signature in MocksCreation.class refers to type MockSettings
[error] in package org.mockito which is not available.
[error] It may be completely missing from the current classpath,or the version on
[error] the classpath might be incompatible with the version used when compiling MocksCreation.class.
[error] bad symbolic reference. A signature in MockitoStubs.class refers to term stubbing
[error] in package org.mockito which is not available.
[error] It may be completely missing from the current classpath,or the version on
[error] the classpath might be incompatible with the version used when compiling MockitoStubs.class.
[error] two errors found
[error] (test:compile) Compilation failed
[error] Total time: 3 s,completed Sep 12,2013 3:23:41 PM

谁知道这可能是什么？