网站介绍：文章浏览阅读2.4k次。The compiler compliance specified is 1.7 but a JRE 1.8 is used。原因：你安装的jdk里面的jre 和你eclipse设置的jre 不同。解决：法①window->preferences->Java->Installed JREs, 然后更改版本。法②右键点击你建立的项目 >Properties>Java Compiler>将Compiler compliance level改为1.8 ,再点击Apply_the compiler compliance specified is 1.7 but a jre 1.8 is used
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