m2eclipse

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 … Read more

It seems to be a known issue. You can instruct m2e to ignore this. Option 1: pom.xml Add the following inside your <build/> tag: <pluginManagement> <plugins> <!– Ignore/Execute plugin execution –> <plugin> <groupId>org.eclipse.m2e</groupId> <artifactId>lifecycle-mapping</artifactId> <version>1.0.0</version> <configuration> <lifecycleMappingMetadata> <pluginExecutions> <!– copy-dependency plugin –> <pluginExecution> <pluginExecutionFilter> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-dependency-plugin</artifactId> <versionRange>[1.0.0,)</versionRange> <goals> <goal>copy-dependencies</goal> </goals> </pluginExecutionFilter> <action> <ignore /> </action> … Read more