maven-dependency-plugin (goals "copy-dependencies", "unpack") is not supported by m2e
EclipseMavenM2eclipseEclipse Problem Overview
I have a fairly simple Maven project:
<project>
<dependencies>
...
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.4</version>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/dependencies</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
However, I get the following error in m2eclipse:
Description Resource Path Location Type
maven-dependency-plugin (goals "copy-dependencies", "unpack") is not supported by m2e. pom.xml /jasperreports-test line 60 Maven Project Build Lifecycle Mapping Problem
Why do I care if m2eclipse doesn't "support" this task? Maven does, and that's all I really care about. How can I get this error in my project to go away?
Eclipse Solutions
Solution 1 - Eclipse
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>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
</plugins></pluginManagement>
You will need to do Maven... -> Update Project Configuration on your project after this.
Read more: http://wiki.eclipse.org/M2E_plugin_execution_not_covered#m2e_maven_plugin_coverage_status
Option 2: Global Eclipse Override
To avoid changing your POM files, the ignore override can be applied to the whole workspace via Eclipse settings.
Save this file somewhere on the disk: https://gist.github.com/maksimov/8906462
In Eclipse/Preferences/Maven/Lifecycle Mappings
browse to this file and click OK:
Solution 2 - Eclipse
This is a problem of M2E for Eclipse M2E plugin execution not covered.
To solve this problem, all you got to do is to map the lifecycle it doesn't recognize and instruct M2E to execute it.
You should add this after your plugins
, inside the build
. This will remove the error and make M2E recognize the goal copy-depencies
of maven-dependency-plugin
and make the POM work as expected, copying dependencies to folder every time Eclipse build it. If you just want to ignore the error, then you change <execute />
for <ignore />
. No need for enclosing your maven-dependency-plugin
into pluginManagement
, as suggested before.
<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>
<execute />
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
</plugins>
</pluginManagement>
Solution 3 - Eclipse
If copy-dependencies, unpack, pack, etc., are important for your project you shouldn't ignore it. You have to enclose your <plugins>
in <pluginManagement>
tested with Eclipse Indigo SR1, maven 2.2.1
Solution 4 - Eclipse
To make it work, instead of ignoring it, you can install the m2e connector for the maven-dependency-plugin:
https://github.com/ianbrandt/m2e-maven-dependency-plugin
Here is how you would do it in Eclipse:
- go to Window/Preferences/Maven/Discovery/
- enter Catalog URL: http://download.eclipse.org/technology/m2e/discovery/directory-1.4.xml
- click Open Catalog
- choose the m2e-maven-dependency-plugin
- enjoy
Solution 5 - Eclipse
Despite answer from CaioToOn above, I still had problems getting this to work initially.
After multiple attempts, finally got it working. Am pasting my final version here - hoping it will benefit somebody else.
<build>
<plugins>
<!--
Copy all Maven Dependencies (-MD) into libMD/ folder to use in classpath via shellscript
-->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.8</version>
<executions>
<execution>
<id>copy</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/libMD</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
<!--
Above maven-dependepcy-plugin gives a validation error in m2e.
To fix that, add the plugin management step below. Per: http://stackoverflow.com/a/12109018
-->
<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>
<execute />
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
Solution 6 - Eclipse
I had the same problem when trying to load Hadoop project in eclipse. I tried the solutions above, and I believe it might have worked in Eclipse Kepler... not even sure anymore (tried too many things).
With all the problems I was having, I decided to move on to Eclipse Luna, and the solutions above did not work for me.
There was another post that recommended changing the
Fortunately, I found out how to remove all the errors. Go to Window->Preferences->Maven-> Error/Warnings and change "Plugin execution not covered by lifecycle..." option to "Ignore". Hope it helps.
Solution 7 - Eclipse
I know this is old post but I struggled today with this problem also and I used template from this page: http://maven.apache.org/plugins/maven-dependency-plugin/usage.html
<project>
[...]
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.7</version>
<executions>
<execution>
<id>copy</id>
<phase>package</phase>
<goals>
<goal>copy</goal>
</goals>
<configuration>
<artifactItems>
<artifactItem>
<groupId>[ groupId ]</groupId>
<artifactId>[ artifactId ]</artifactId>
<version>[ version ]</version>
<type>[ packaging ]</type>
<classifier> [classifier - optional] </classifier>
<overWrite>[ true or false ]</overWrite>
<outputDirectory>[ output directory ]</outputDirectory>
<destFileName>[ filename ]</destFileName>
</artifactItem>
</artifactItems>
<!-- other configurations here -->
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
[...]
</project>
and everything works fine under m2e
1.3.1.
When I tried to use
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.4</version>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/dependencies</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
I also got m2e
error.
Solution 8 - Eclipse
Another option is to navigate to problems tab, right click on error, click apply quick fix. The should generate the ignore xml code and apply it .pom file for you.