如何在Eclipse Mars中导入Gradle / Java8项目（不支持的类版本错误）？

Question

我想将Java8项目导入我的工作区。当我导入它们时，我收到以下错误消息：

Loading Gradle project preview failed due to an error in the referenced Gradle build.
Could not fetch model of type 'GradleBuild' using Gradle distribution 'https://services.gradle.org/distributions/gradle-2.8-rc-1-bin.zip'.

Build file '/home/PROJECT/git/PROJECT/libraries/build.gradle' line: 1
A problem occurred evaluating root project 'libraries'.
java.lang.UnsupportedClassVersionError: com/PROJECT/gradle/versioning/VersioningPlugin : Unsupported major.minor version 52.0
com/PROJECT/gradle/versioning/VersioningPlugin : Unsupported major.minor version 52.0

我将Java合规性级别设置为1.8：

但我仍然得到这个错误。我安装的Java版本是（java -version）：

openjdk version "1.8.0_45-internal"
OpenJDK Runtime Environment (build 1.8.0_45-internal-b14)
OpenJDK 64-Bit Server VM (build 25.45-b02, mixed mode)

在我看来，一切都应该如此，......那又怎么了？

编辑：

我的执行环境有Java8-Version：

所有构建路径变量都指向Java8：

Answer 1

检查您是否在Project Properties＆gt;中运行Java 8 Java构建路径＆gt;标签库。还要检查您的运行配置（菜单运行＆gt;运行配置＆gt;标签设置＆gt;执行环境）