specs_2.8.0-1.6.5.jar of scala-demo build path is cross-compiled with an incompatible version of Sca

Description    Resource    Path    Location    Type
specs_2.8.0-1.6.5.jar of scala-demo build path is cross-compiled with an incompatible version of Scala (2.8.0). In case this report is mistaken, this check can be disabled in the compiler preference page.    scala-demo        Unknown    Scala Version Problem

解决办法：eclipse>首选项>Scala>Compiler>Build Manager >withVersionClasspathValidator的勾选取消，然后点击Apply按钮，再点击Apply and Close退出即可。