您需要使用构建助手来附加源目录-plugin 。

像这样：

 < plugin> 
< groupId> org.codehaus.mojo< / groupId> 
< artifactId> build-helper-maven-plugin< / artifactId> 
<执行> 
< execution> 
< id> add-source< / id> 
< phase> generate-sources< / phase> 
< goals> 
< goal> add-source< / goal> 
< / goals> 
< configuration> 
< sources> 
< source> $ {project.build.directory} / generated-sources / java /< / source> 
< / sources> 
< / configuration> 
< / execution> 
< / executions> 
< / plugin> 
 

您还需要：

• 从Eclipse Marketplace安装Apt M2E Con​​nector。
  要执行此操作，请单击pom.xml的概述选项卡中的错误，然后选择发现。


• 确保build-helper-maven-plugin没有插件执行过滤器（请参阅 http://wiki.eclipse.org/M2E_plugin_execution_not_covered ）

I have a maven project in eclipse and have maven goals that run annotation processors to generate code. The output folder for this code is target/generated-sources/apt.

In order for eclipse to see this generated code I need to add target/generated-sources/apt as a source folder to the eclipse project.

However, this causes there to be an error of type "Maven Configuration Problem" saying

Project configuration is not up-to-date with pom.xml. Run project configuration update

I think I understand why this is the case as eclipse has a different set of source folders to maven's set. But I need this different set, as I need eclipse to be able to see the generated source folders...

When doing a pure maven built, these source folders will be included in the build, by maven.

btw, I have upgraded to the official eclipse release of the maven eclipse plugin, m2e 1.0 - what used to be m2eclipse. I'd like to see if I can find a work around/solution to this with the m2e plugin before I have to go back to the old m2eclipse version.

You need to attach the source directory with the build-helper-plugin.

Like so:

 <plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>build-helper-maven-plugin</artifactId>
    <executions>
        <execution>
            <id>add-source</id>
            <phase>generate-sources</phase>
            <goals>
                <goal>add-source</goal>
            </goals>
            <configuration>
                <sources>
                    <source>${project.build.directory}/generated-sources/java/</source>
                </sources>
            </configuration>
        </execution>
    </executions>
 </plugin>

You will also need to:

• Install the "Apt M2E Connector" from the Eclipse Marketplace. To do so click the error in the Overview tab of your pom.xml and select "Discover".
• Ensure there are no plugin execution filters for the build-helper-maven-plugin (see http://wiki.eclipse.org/M2E_plugin_execution_not_covered)