不支持 major.minor 版本 52.0 - grails
Unsupported major.minor version 52.0 - grails
我刚刚从 svn 下载了一个 grails 项目。
我看到不受支持的 major.minor 版本是 well known problem on S.O. 由 运行 时间和编译期间使用的 JDK 不匹配版本引起的。
但我使用的是与下面完全相同的版本：
shell:
JAVA构建路径：
已安装的 JRE：
请问我遗漏了什么，仍然出现以下错误？
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$_dispatch_closure7.doCall(Gant.groovy)
at gant.Gant.withBuildListeners(Gant.groovy:427)
at gant.Gant.this$withBuildListeners(Gant.groovy)
at gant.Gant$this$withBuildListeners.callCurrent(Unknown Source)
at gant.Gant.dispatch(Gant.groovy:415)
at gant.Gant.this$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.access0(URLClassLoader.java:71)
at java.net.URLClassLoader.run(URLClassLoader.java:361)
at java.net.URLClassLoader.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.access0(URLClassLoader.java:71)
at java.net.URLClassLoader.run(URLClassLoader.java:361)
at java.net.URLClassLoader.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$withBuildListeners(Gant.groovy)
at gant.Gant$this$withBuildListeners.callCurrent(Unknown Source)
at gant.Gant.dispatch(Gant.groovy:415)
at gant.Gant.this$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 运行 通过右键单击项目 -> 运行-as -> grailsCommand (运行-app)
该项目是使用较新版本的 JDK 编译的，但正在 运行 使用旧版本。清理所有代码并重建项目。
有时这是因为一个插件的二进制文件是用更高版本的Java编译的。
我刚刚从 svn 下载了一个 grails 项目。
我看到不受支持的 major.minor 版本是 well known problem on S.O. 由 运行 时间和编译期间使用的 JDK 不匹配版本引起的。
但我使用的是与下面完全相同的版本：
shell:
JAVA构建路径：
已安装的 JRE：
请问我遗漏了什么，仍然出现以下错误？
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$_dispatch_closure7.doCall(Gant.groovy)
at gant.Gant.withBuildListeners(Gant.groovy:427)
at gant.Gant.this$withBuildListeners(Gant.groovy)
at gant.Gant$this$withBuildListeners.callCurrent(Unknown Source)
at gant.Gant.dispatch(Gant.groovy:415)
at gant.Gant.this$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.access0(URLClassLoader.java:71)
at java.net.URLClassLoader.run(URLClassLoader.java:361)
at java.net.URLClassLoader.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.access0(URLClassLoader.java:71)
at java.net.URLClassLoader.run(URLClassLoader.java:361)
at java.net.URLClassLoader.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$withBuildListeners(Gant.groovy)
at gant.Gant$this$withBuildListeners.callCurrent(Unknown Source)
at gant.Gant.dispatch(Gant.groovy:415)
at gant.Gant.this$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 运行 通过右键单击项目 -> 运行-as -> grailsCommand (运行-app)
该项目是使用较新版本的 JDK 编译的，但正在 运行 使用旧版本。清理所有代码并重建项目。
有时这是因为一个插件的二进制文件是用更高版本的Java编译的。