Maven install error: Dependency could not be resolved
maven, maven-3
Solution
Could not transfer artifact org.apache.maven.plugins:maven-dependency-plugin:pom:2.8 from/to central (http://repo.maven.apache.org/maven2): repo.maven.apache.org: Unknown host repo.maven.apache.org
It seems like your maven cannot access remote central repository.
- Check if you have an established internet connection.
- Check if you can access default maven repo http://repo.maven.apache.org/maven2 in your browser.
- Check if you have correct configuration in `<repositories>` and `<proxies>` in your your `settings.xml`
Problem
I am using Maven 3.1.1. When I run `mvn install` I get the following error: ``` D:\spring source>mvn install [INFO] Scanning for projects... [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building SpringDependencies 1.0 [INFO] ------------------------------------------------------------------------ Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven- dependency-plugin/2.8/maven-dependency-plugin-2.8.pom [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 0.648s [INFO] Finished at: Mon Dec 16 15:01:47 IST 2013 [INFO] Final Memory: 4M/15M [INFO] ------------------------------------------------------------------------ [ERROR] Plugin org.apache.maven.plugins:maven-dependency-plugin:2.8 or one of it s dependencies could not be resolved: Failed to read artifact descriptor for org .apache.maven.plugins:maven-dependency-plugin:jar:2.8: Could not transfer artifa ct org.apache.maven.plugins:maven-dependency-plugin:pom:2.8 from/to central (htt p://repo.maven.apache.org/maven2): repo.maven.apache.org: Unknown host repo.mave n.apache.org -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e swit ch. [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 rea d the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginResoluti onException ``` My `pom.xml` is: ``` <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>spring-source-download</groupId> <artifactId>SpringDependencies</artifactId> <version>1.0</version> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.0.0.RELEASE</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-dependency-plugin</artifactId> <version>3.1.1</version> <executions> <execution> <id>download-dependencies</id> <phase>generate-resources</phase> <goals> <goal>copy-dependencies</goal> </goals> <configuration> <outputDirectory> ${project.build.directory}/dependencies </outputDirectory> </configuration> </execution> </executions> </plugin> </plugins> </build> </project> ```