Failed to execute goal: ...Compilation failure: Compilation failure:

Failed to execute goal: …Compilation failure: Compilation failure:

错误描述

基于SpringBoot2.0使用Maven构建了一个多模块项目，其中将项目中的公用模块抽离出来独立成工程，并在其它模块中引用该公用模块。但是，在使用maven install时，却总是抛出无法找到公用模块的类这样的错误。问题如下：

BUILD FAILURE
    [INFO] ------------------------------------------------------------------------
    [INFO] Total time: 3.446 s
    [INFO] Finished at: 2018-09-15T17:47:06+08:00
    [INFO] Final Memory: 40M/293M
    [INFO] ------------------------------------------------------------------------
    [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.0:compile (default-compile) on project demo-tyrity: Compilation failure: Compilation failure:
    [ERROR] /Users/tyrone/workspace/tyrone-demo/demo-tyrity/src/main/java/com/tyrone/o2o/tangpiao/service/impl/TangPiaoServiceImpl.java:[9,40] 程序包com.tyrone.o2o.service.tangpiao不存在
    [ERROR] /Users/tyrone/workspace/tyrone-demo/demo-tyrity/src/main/java/com/tyrone/o2o/tangpiao/service/impl/TangPiaoServiceImpl.java:[14,45] 找不到符号
    [ERROR] 符号: 类 ITangPiaoService
    [ERROR] /Users/tyrone/workspace/tyrone-demo/demo-tyrity/src/main/java/com/tyrone/o2o/Application.java:[11,40] 程序包com.tyrone.o2o.service.tangpiao不存在
    [ERROR] /Users/tyrone/workspace/tyrone-demo/demo-tyrity/src/main/java/com/tyrone/o2o/Application.java:[17,28] 找不到符号
    [ERROR] 符号:   类 ITangPiaoService
    [ERROR] 位置: 类 com.tyrone.o2o.Application
    [ERROR] /Users/workspace/tyrone-demo/demo-tyrity/src/main/java/com/tyrone/o2o/tangpiao/service/impl/TangPiaoServiceImpl.java:[18,9] 方法不会覆盖或实现超类型的方法
    [ERROR] /Users/tyrone/workspace/tyrone-demo/demo-tyrity/src/main/java/com/tyrone/o2o/tangpiao/service/impl/TangPiaoServiceImpl.java:[23,9] 方法不会覆盖或实现超类型的方法
    [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/MojoFailureException
    [ERROR]

解决方案

在spring-boot-maven-plugin插件中增加如下属性：

<configuration>
    <classifier>exec</classifier>
</configuration>

完整配置如下：

<plugin>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-maven-plugin</artifactId>
    <version>${spring-boot-version}</version>
    <configuration>
        <classifier>exec</classifier>
    </configuration>
    <executions>
        <execution>
            <goals>
                <goal>repackage</goal>
            </goals>
        </execution>
    </executions>
</plugin>