解決maven-dependency-plugin (goals "copy-dependencies", "unpack") is not supported by m2e.

1. <build>  
2.         <pluginManagement>  
3.             <plugins>  
4.                 <plugin>  
5.                     <groupId>org.eclipse.m2e</groupId>  
6.                     <artifactId>lifecycle-mapping</artifactId>  
7.                     <version>1.0.0</version>  
8.                     <configuration>  
9.                         <lifecycleMappingMetadata>  
10.                             <pluginExecutions>  
11.                                 <pluginExecution>  
12.                                     <pluginExecutionFilter>  
13.                                         <groupId>org.apache.maven.plugins</groupId>  
14.                                         <artifactId>maven-dependency-plugin</artifactId>  
15.                                         <versionRange>[2.0,)</versionRange>  
16.                                         <goals>  
17.                                             <goal>copy-dependencies</goal>  
18.                                         </goals>  
19.                                     </pluginExecutionFilter>  
20.                                     <action>  
21.                                         <ignore />  
22.                                     </action>  
23.                                 </pluginExecution>  
24.                             </pluginExecutions>  
25.                         </lifecycleMappingMetadata>  
26.                     </configuration>  
27.                 </plugin>  
28.             </plugins>  
29.         </pluginManagement>  
30.         <plugins>  
31.             <plugin>  
32.                 <groupId>org.apache.maven.plugins</groupId>  
33.                 <artifactId>maven-dependency-plugin</artifactId>  
34.                 <executions>  
35.                     <execution>  
36.                         <id>copy-dependencies</id>  
37.                         <phase>package</phase>  
38.                         <goals>  
39.                             <goal>copy-dependencies</goal>  
40.                         </goals>  
41.                         <configuration>  
42.                             <outputDirectory>${project.build.directory}/lib</outputDirectory>  
43.                             <excludeTransitive>false</excludeTransitive>  
44.                             <stripVersion>true</stripVersion>  
45.                         </configuration>  
46.                     </execution>  
47.                 </executions>  
48.             </plugin>  
49.         </plugins>  
50.     </build> 

 

上面的是  原來帖子的，

這個是 我加上去的

<build>
    
    <pluginManagement>  
            <plugins>  
                <plugin>  
                    <groupId>org.eclipse.m2e</groupId>  
                    <artifactId>lifecycle-mapping</artifactId>  
                    <version>1.0.0</version>  
                    <configuration>  
                        <lifecycleMappingMetadata>  
                            <pluginExecutions>  
                                <pluginExecution>  
                                    <pluginExecutionFilter>  
                                        <groupId>org.apache.maven.plugins</groupId>  
                                        <artifactId>maven-dependency-plugin</artifactId>  
                                        <versionRange>[2.0,)</versionRange>  
                                        <goals>  
                                            <goal>copy-dependencies</goal>  
                                        </goals>  
                                    </pluginExecutionFilter>  
                                    <action>  
                                        <ignore />  
                                    </action>  
                                </pluginExecution>  
                            </pluginExecutions>  
                        </lifecycleMappingMetadata>  
                    </configuration>  
                </plugin>  
            </plugins>  
        </pluginManagement>  
    
        <plugins>
            <plugin>
                <groupId>com.google.code.sortpom</groupId>
                <artifactId>maven-sortpom-plugin</artifactId>
                <version>2.3.0</version>
            </plugin>
            <plugin>  
                <groupId>org.apache.maven.plugins</groupId>  
                <artifactId>maven-dependency-plugin</artifactId>  
                <executions>  
                    <execution>  
                        <id>copy</id>  
                        <phase>package</phase>  
                        <goals>  
                            <goal>copy-dependencies</goal>  
                        </goals>  
                        <configuration>  
                            <outputDirectory>  
                                ${project.build.directory}/lib  
                            </outputDirectory>  
                        </configuration>  
                    </execution>  
                </executions>  
            </plugin>
        </plugins>
    </build>

通過測試能夠解決這個問題， 最好 更新一下maven項目便可