不支持的major.minor版本52.0-Grails [英] Unsupported major.minor version 52.0 - grails
本文介绍了不支持的major.minor版本52.0-Grails的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我刚刚从svn下载了grails项目.
I just downloaded a grails project from svn.
我看到不受支持的major.minor版本是由JDK版本不匹配引起的 SO上的众所周知的问题在运行时和编译时使用.
I saw that the unsupported major.minor version is a well known problem on S.O. caused by a mismatch version of JDK used during runtime and compile time.
但是我使用的是以下相同的版本:
But I am using the very same version as below:
外壳:
JAVA构建路径:
已安装的JRE:
请问我仍然存在以下错误，我想念什么?
Please what am I missing for still having the below error?
Environment set to development
[groovyc] Compiling 190 source files to C:\Users\xxx
java.lang.UnsupportedClassVersionError: com/sun/tools/javac/Main : Unsupported major.minor version 52.0
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:116)
at _GrailsCompile_groovy$_run_closure4_closure10.doCall(_GrailsCompile_groovy:117)
at _GrailsCompile_groovy$_run_closure4_closure10.doCall(_GrailsCompile_groovy)
at _GrailsSettings_groovy$_run_closure10.doCall(_GrailsSettings_groovy:280)
at _GrailsSettings_groovy$_run_closure10.call(_GrailsSettings_groovy)
at _GrailsCompile_groovy$_run_closure4.doCall(_GrailsCompile_groovy:104)
at _GrailsCompile_groovy$_run_closure3.doCall(_GrailsCompile_groovy:69)
at _GrailsPackage_groovy$_run_closure2_closure9.doCall(_GrailsPackage_groovy:85)
at _GrailsPackage_groovy$_run_closure2_closure9.doCall(_GrailsPackage_groovy)
at _GrailsSettings_groovy$_run_closure10.doCall(_GrailsSettings_groovy:280)
at _GrailsSettings_groovy$_run_closure10.call(_GrailsSettings_groovy)
at _GrailsPackage_groovy$_run_closure2.doCall(_GrailsPackage_groovy:84)
at RunApp$_run_closure1.doCall(RunApp:28)
at gant.Gant$_dispatch_closure5.doCall(Gant.groovy:381)
at gant.Gant$_dispatch_closure7.doCall(Gant.groovy:415)
at gant.Gant$_dispatch_closure7.doCall(Gant.groovy)
at gant.Gant.withBuildListeners(Gant.groovy:427)
at gant.Gant.this$2$withBuildListeners(Gant.groovy)
at gant.Gant$this$2$withBuildListeners.callCurrent(Unknown Source)
at gant.Gant.dispatch(Gant.groovy:415)
at gant.Gant.this$2$dispatch(Gant.groovy)
at gant.Gant.invokeMethod(Gant.groovy)
at gant.Gant.executeTargets(Gant.groovy:590)
at gant.Gant.executeTargets(Gant.groovy:589)
Caused by: java.lang.UnsupportedClassVersionError: com/sun/tools/javac/Main : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:190)
at org.codehaus.groovy.tools.javac.JavacJavaCompiler.findJavac(JavacJavaCompiler.java:160)
at org.codehaus.groovy.tools.javac.JavacJavaCompiler.compile(JavacJavaCompiler.java:49)
at org.codehaus.groovy.tools.javac.JavaAwareCompilationUnit.gotoPhase(JavaAwareCompilationUnit.java:94)
at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:484)
at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:453)
at org.codehaus.groovy.tools.FileSystemCompiler.compile(FileSystemCompiler.java:67)
at org.codehaus.groovy.tools.FileSystemCompiler.doCompilation(FileSystemCompiler.java:180)
at org.codehaus.groovy.ant.Groovyc.compile(Groovyc.java:905)
at org.codehaus.groovy.ant.Groovyc.execute(Groovyc.java:607)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
... 23 more
--- Nested Exception ---
java.lang.UnsupportedClassVersionError: com/sun/tools/javac/Main : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:190)
at org.codehaus.groovy.tools.javac.JavacJavaCompiler.findJavac(JavacJavaCompiler.java:160)
at org.codehaus.groovy.tools.javac.JavacJavaCompiler.compile(JavacJavaCompiler.java:49)
at org.codehaus.groovy.tools.javac.JavaAwareCompilationUnit.gotoPhase(JavaAwareCompilationUnit.java:94)
at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:484)
at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:453)
at org.codehaus.groovy.tools.FileSystemCompiler.compile(FileSystemCompiler.java:67)
at org.codehaus.groovy.tools.FileSystemCompiler.doCompilation(FileSystemCompiler.java:180)
at org.codehaus.groovy.ant.Groovyc.compile(Groovyc.java:905)
at org.codehaus.groovy.ant.Groovyc.execute(Groovyc.java:607)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
at _GrailsCompile_groovy$_run_closure4_closure10.doCall(_GrailsCompile_groovy:117)
at _GrailsCompile_groovy$_run_closure4_closure10.doCall(_GrailsCompile_groovy)
at _GrailsSettings_groovy$_run_closure10.doCall(_GrailsSettings_groovy:280)
at _GrailsSettings_groovy$_run_closure10.call(_GrailsSettings_groovy)
at _GrailsCompile_groovy$_run_closure4.doCall(_GrailsCompile_groovy:104)
at _GrailsCompile_groovy$_run_closure3.doCall(_GrailsCompile_groovy:69)
at _GrailsPackage_groovy$_run_closure2_closure9.doCall(_GrailsPackage_groovy:85)
at _GrailsPackage_groovy$_run_closure2_closure9.doCall(_GrailsPackage_groovy)
at _GrailsSettings_groovy$_run_closure10.doCall(_GrailsSettings_groovy:280)
at _GrailsSettings_groovy$_run_closure10.call(_GrailsSettings_groovy)
at _GrailsPackage_groovy$_run_closure2.doCall(_GrailsPackage_groovy:84)
at RunApp$_run_closure1.doCall(RunApp:28)
at gant.Gant$_dispatch_closure5.doCall(Gant.groovy:381)
at gant.Gant$_dispatch_closure7.doCall(Gant.groovy:415)
at gant.Gant$_dispatch_closure7.doCall(Gant.groovy)
at gant.Gant.withBuildListeners(Gant.groovy:427)
at gant.Gant.this$2$withBuildListeners(Gant.groovy)
at gant.Gant$this$2$withBuildListeners.callCurrent(Unknown Source)
at gant.Gant.dispatch(Gant.groovy:415)
at gant.Gant.this$2$dispatch(Gant.groovy)
at gant.Gant.invokeMethod(Gant.groovy)
at gant.Gant.executeTargets(Gant.groovy:590)
at gant.Gant.executeTargets(Gant.groovy:589)
Compilation error: java.lang.UnsupportedClassVersionError: com/sun/tools/javac/Main : Unsupported major.minor version 52.0
我通过在项目上单击鼠标右键来运行它->运行方式-> grailsCommand(运行应用程序)
I run it via rightclick on project -> run-as -> grailsCommand (run-app)
推荐答案
该项目是使用较新版本的JDK编译的，但正在较旧的版本上运行.清理所有代码并重建项目.
The project was compiled using a newer version of JDK but is being run at an older version. Clean all your code and rebuild the project.
有时这是由于插件的二进制文件已使用更高版本的Java编译而成.
Sometimes this is due to a plugin whose binary has been compiled with a higher version of Java.
这篇关于不支持的major.minor版本52.0-Grails的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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