错误不再支持源选项1.5。使用1.6或更高版本

77

这一切都发生在我尝试通过以下方式构建springboot应用程序时 ./mvnw clean install

当我第一次运行install命令时，它遇到以下问题。

[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.749s
[INFO] Finished at: Fri Jun 21 02:14:32 IST 2013
[INFO] Final Memory: 4M/15M
[INFO] ------------------------------------------------------------------------
**[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile (default-compile) on project spring-social-twitter4j: Execution default-compile of goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile failed: A required class was missing while executing org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile: org/codehaus/plexus/compiler/CompilerException**
[ERROR] -----------------------------------------------------
[ERROR] realm =    plugin>org.apache.maven.plugins:maven-compiler-plugin:2.3.2
[ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
[ERROR] urls[0] = file:/C:/Users/SS%20Computer/.m2/repository/org/apache/maven/plugins/maven-compiler-plugin/2.3.2/maven-compiler-plugin-2.3.2.jar
[ERROR] urls[1] = file:/C:/Users/SS%20Computer/.m2/repository/org/codehaus/plexus/plexus-utils/1.1/plexus-utils-1.1.jar
[ERROR] Number of foreign imports: 1
[ERROR] import: Entry[import  from realm ClassRealm[maven.api, parent: null]]
[ERROR] 
[ERROR] -----------------------------------------------------: org.codehaus.plexus.compiler.CompilerException
[ERROR] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginContainerException

我在Stackoverflow上搜索了问题，并通过帖子解决了这个问题

无法执行目标org.apache.maven.plugins：maven-compiler-plugin：2.3.2：compile（默认编译）

然后，我陷入另一个问题

[ERROR] Source option 1.5 is no longer supported. Use 1.6 or later.
[ERROR] Target option 1.5 is no longer supported. Use 1.6 or later.

我在OS X上。mvn -v显示：

Maven home: /Users/matthuntington/Desktop/apache-maven-3.5.0
Java version: 9, vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/jdk-9.jdk/Contents/Home
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "10.12.6", arch: "x86_64", family: "mac"

这是我的pom文件

<?xml version="1.0" encoding="UTF-8"?>
<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>com.packtpub.restapp</groupId>
    <artifactId>ticket-management</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>ticket-management</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    </properties>


    <dependencies>
            <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>5.0.1.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
            <version>1.5.7.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <version>1.5.7.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.9.2</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>5.0.0.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.0.1.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <version>1.5.7.RELEASE</version>                
        </dependency>   
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>


</project>
spring-boot  maven  intellij-idea  jetbrains-ide  unsupported-class-version 
— 环氧树脂
source
1
您正在java9上使用Spring Boot 1.5，这基本上是不受支持的组合。您还尝试将Spring Boot 1.5与Spring 5结合使用，而将其设计为与Spring 4.3一起使用。
— Deinum M. 18年
@M。Deinum。你是对的。

Answers:

149

您可以通过将以下属性添加到pom.xml文件中来指定Maven源/目标版本

<properties>
    <maven.compiler.source>1.6</maven.compiler.source>
    <maven.compiler.target>1.6</maven.compiler.target>
</properties>
— 8389458
source
2
就我而言，这不是春季启动，并且pom.xml中没有1.5规范，默认值为1.5。我将<properties>作为<project>的子项添加，并且可以正常工作。
— 18446744073709551615
62

我认为这意味着

  • 您正在使用JDK9或更高版本
  • 您的项目使用的maven-compiler-plugin的旧版本默认为Java 5。

您有三种解决方案

  1. 降级到JDK7或JDK8（MEH）

  2. 使用maven-compiler-plugin版本或更高版本，因为

    注意：从3.8.0开始，默认值已从1.5更改为1.6。请参阅https://maven.apache.org/plugins/maven-compiler-plugin/compile-mojo.html#target

    <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.8.0</version>
</plugin>

  3. 指示maven-compiler-plugin使用源级别6和目标6（或更高版本）。

    https://maven.apache.org/plugins/maven-compiler-plugin/推荐的最佳做法

    还要注意，当前的默认源设置是1.6，默认目标设置是1.6，与运行Maven的JDK无关。强烈建议您按照设置Java编译器的-source和-target中所述设置source和target来更改这些默认值。

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

    或使用

    <properties>
  <maven.compiler.source>1.6</maven.compiler.source>
  <maven.compiler.target>1.6</maven.compiler.target>
</properties>
— rds
source
14

此错误也可能与插件版本有关。您可以像下面这样在.POM文件中修复它：

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>2.3.1</version>
            <configuration>
                <source>1.6</source>
                <target>1.6</target>
            </configuration>
        </plugin>
    </plugins>
</build>
— 社区Ans
source
2

对我来说，解决方案是将maven编译器插件的版本设置为3.8.0并指定发行版（在您的情况下为9，在我的情况下为11）

    <plugin>
      <artifactId>maven-compiler-plugin</artifactId>
      <version>3.8.0</version>
      <configuration>
        <release>11</release>
      </configuration>
    </plugin>
— KC巴尔茨
source
2

这对我有用!!!!

<?xml version="1.0" encoding="UTF-8"?>

<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>academy.learnprogramming</groupId>
    <artifactId>hello-maven</artifactId>
    <version>1.0-SNAPSHOT</version>
<dependencies>
    <dependency>
        <groupId>ch.qos.logback</groupId>
        <artifactId>logback-classic</artifactId>
        <version>1.2.3</version>
    </dependency>

</dependencies>
<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.7.0</version>
            <configuration>
                <target>10</target>
                <source>10</source>
                <release>10</release>
            </configuration>

        </plugin>
    </plugins>
</build>
</project>
— 穆罕默德·西坎达（MOHAMMAD SIKANDAR）
source
2

在IntelliJ中：

  1. 打开Project Structure（⌘;）> Modules> YOUR MODULE- >语言水平：设置9，你的情况。
  2. 对每个模块重复上述步骤。

屏幕截图

— 环氧树脂
source
1

可能损坏的jar文件可能显示错误为“ ZipFile无效的LOC标头（错误签名）”。您需要删除所有显示错误的jar文件并添加此依赖关系

 <dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>servlet-api</artifactId>
    <version>3.0-alpha-1</version>
    <scope>provided</scope>
</dependency>
— 罗汉·潘迪（Rohan Pandey）
source
0

我收到以下错误消息：更改pom.xml后，“不再支持源选项5。使用6或更高版本”

<java.version>7</java.version>

至

<java.version>11</java.version>

后来意识到该属性与点破折号一起使用：

  <source>${java-version}</source>
  <target>${java-version}</target>

（咒骂），我用破折号替换了点，错误消失了：

<java-version>11</javaversion>
— 重新启动宇宙
source
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