2014-10-09 101 views
2

我試圖下載並安裝此Maven插件:在目錄的Java/Maven的混亂 '不支持MAJOR.MINOR版本51.0'

https://github.com/mirkonasato/graphipedia

cd和運行

mvn clean install 

我今天在Mac上安裝了mvn與自制軟件,所以它應該是最新的。我得到的錯誤是:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile (default-compile) on project graphipedia-dataimport: Compilation failure 
[ERROR] error: Exception thrown while constructing Processor object: org/neo4j/kernel/impl/annotations/ServiceProcessor : Unsupported major.minor version 51.0 

我GOOGLE了這個錯誤,並發現一對夫婦的人說,原因可能是一個古老的Java版本。所以,我在系統偏好設置檢查,它說Java 7中

但我真的不相信,跑

mvn --version 

這給了我這個輸出

Apache Maven 3.2.3 (33f8c3e1027c3ddde99d3cdebad2656a31e8fdf4; 2014-08-11T22:58:10+02:00) 
Maven home: /usr/local/Cellar/maven/3.2.3/libexec 
Java version: 1.6.0_65, vendor: Apple Inc. 
Java home: /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home 
Default locale: de_DE, platform encoding: MacRoman 
OS name: "mac os x", version: "10.9.5", arch: "x86_64", family: "mac" 

我很困惑。爲什麼Java v。1.6在這裏?我該如何解決這個問題?我只想使用這個不錯的Java應用程序。

哦,和Graphipedia應用程序的pom.xml看起來像這樣。認爲這可能是有益的,以及

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> 
    <modelVersion>4.0.0</modelVersion> 

    <groupId>org.graphipedia</groupId> 
    <artifactId>graphipedia-parent</artifactId> 
    <version>0.1.0-SNAPSHOT</version> 
    <packaging>pom</packaging> 
    <name>Graphipedia Parent</name> 

    <properties> 
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 
    <neo4j.version>2.0.0</neo4j.version> 
    </properties> 

    <modules> 
    <module>graphipedia-dataimport</module> 
    </modules> 

    <dependencyManagement> 
    <dependencies> 
     <dependency> 
     <groupId>org.codehaus.woodstox</groupId> 
     <artifactId>woodstox-core-asl</artifactId> 
     <version>4.1.4</version> 
     </dependency> 
     <dependency> 
     <groupId>org.neo4j</groupId> 
     <artifactId>neo4j-kernel</artifactId> 
     <version>${neo4j.version}</version> 
     </dependency> 
     <dependency> 
     <groupId>org.neo4j</groupId> 
     <artifactId>neo4j-lucene-index</artifactId> 
     <version>${neo4j.version}</version> 
     </dependency> 
     <dependency> 
     <groupId>org.neo4j</groupId> 
     <artifactId>neo4j-graph-algo</artifactId> 
     <version>${neo4j.version}</version> 
     </dependency> 
     <dependency> 
     <groupId>junit</groupId> 
     <artifactId>junit</artifactId> 
     <version>4.10</version> 
     </dependency> 
    </dependencies> 
    </dependencyManagement> 

    <build> 
    <plugins> 
     <plugin> 
     <groupId>org.apache.maven.plugins</groupId> 
     <artifactId>maven-compiler-plugin</artifactId> 
     <version>2.3.2</version> 
     <configuration> 
      <source>1.6</source> 
      <target>1.6</target> 
     </configuration> 
     </plugin> 
    </plugins> 
    </build> 

</project> 
+2

這個問題看起來很相似,可能會有所幫助。 http://stackoverflow.com/questions/18813828/why-maven-use-jdk-1-6-but-my-java-version-is-1-7 – Danny 2014-10-09 16:34:00

+1

http://stackoverflow.com/questions/10382929/ unsupported-major-minor-version-51-0 – OhadR 2014-10-09 16:36:38

回答

3

此錯誤意味着您正試圖用Java運行時比Java安裝的代碼被編譯方能執行Java字節碼。如果您使用的是eclipse,請選擇window |偏好| java |編譯器並確保版本不比1.6更新。

或者您可以升級maven試圖用來運行它的java的安裝。

+0

謝謝。我設法修復它。用戶Oskar在回覆中有正確的答案:http://stackoverflow.com/questions/18813828/why-maven-use-jdk-1-6-but-my-java-version-is-1-7#comment35888387_22974231 – 2014-10-09 16:41:07

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