无法在项目 dbproxy 上执行目标 org.apache.maven.plugins:maven-compiler-plugin:3.0:compile (default-compile):

Question

启动应用程序时出现以下错误：

Error:

[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  2.091 s
[INFO] Finished at: 2019-11-29T09:36:53Z
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.0:compile (default-compile) on project dbproxy: Fatal error compiling: error: invalid target release: 13.0.1 -> [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/MojoExecutionException
Makefile:53: recipe for target '/root/hue/desktop/libs/librdbms/java-lib/dbproxy-1.0.jar' failed
make[2]: *** [/root/hue/desktop/libs/librdbms/java-lib/dbproxy-1.0.jar] Error 1
make[2]: Leaving directory '/root/hue/desktop/libs/librdbms'
Makefile:106: recipe for target '.recursive-env-install/libs/librdbms' failed
make[1]: *** [.recursive-env-install/libs/librdbms] Error 2
make[1]: Leaving directory '/root/hue/desktop'``
Makefile:148: recipe for target 'desktop' failed
make: *** [desktop] Error 2

mvn --version Apache Maven 3.6.0 Maven 主页：/usr/share/maven Java 版本：13.0.1，供应商：Oracle Corporation，运行时：/usr/local/java 默认语言环境：en，平台编码：UTF-8 OS名称：“linux”，版本：“4.15.0-52-generic”，arch：“amd64”，系列：“unix”

openjdk 13.0.1 2019-10-15 OpenJDK Runtime Environment (build 13.0.1+9) OpenJDK 64-Bit Server VM (build 13.0.1+9，混合模式，共享)

请帮我解决这个问题。

Answer 1

你的错误说

编译致命错误：错误：无效目标版本：13.0.1

您使用的是maven-compiler-plugin 3.0，但是您至少需要 3.8 才能使用 Java 13。这可以使用<plugin>标记来完成，尽管您可能应该考虑将 Maven 更新到 3.5：

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.8.0</version>
    <configuration>
        <source>13</source>
        <target>13</target>
    </configuration>
</plugin>

看看这篇文章，了解使用 Java 13 还需要什么。