I am trying to install Apache Ambari using the installation instructions at https://cwiki.apache.org/confluence/display/AMBARI/Installation+Guide+for+Ambari+2.7.5
I receive the following error whenever I run any of the maven (mvn) commands:
[INFO] Scanning for projects...
Downloading from apache.snapshots.https: https://repository.apache.org/content/repositories/snapshots/org/apache/maven/wagon/wagon-ssh-external/maven-metadata.xml
Downloading from maven2-repository.atlassian: https://maven.atlassian.com/repository/public/org/apache/maven/wagon/wagon-ssh-external/maven-metadata.xml
Downloading from maven2-repository.dev.java.net: https://download.java.net/maven/2/org/apache/maven/wagon/wagon-ssh-external/maven-metadata.xml
Downloading from maven2-glassfish-repository.dev.java.net: https://download.java.net/maven/glassfish/org/apache/maven/wagon/wagon-ssh-external/maven-metadata.xml
Downloading from central: https://repo.maven.apache.org/maven2/org/apache/maven/wagon/wagon-ssh-external/maven-metadata.xml
[WARNING] Could not transfer metadata org.apache.maven.wagon:wagon-ssh-external/maven-metadata.xml from/to maven2-repository.dev.java.net (https://download.java.net/maven/2/): transfer failed for https://download.java.net/maven/2/org/apache/maven/wagon/wagon-ssh-external/maven-metadata.xml
[WARNING] Could not transfer metadata org.apache.maven.wagon:wagon-ssh-external/maven-metadata.xml from/to maven2-glassfish-repository.dev.java.net (https://download.java.net/maven/glassfish/): transfer failed for https://download.java.net/maven/glassfish/org/apache/maven/wagon/wagon-ssh-external/maven-metadata.xml
[WARNING] Could not transfer metadata org.apache.maven.wagon:wagon-ssh-external/maven-metadata.xml from/to maven2-repository.atlassian (https://maven.atlassian.com/repository/public): transfer failed for https://maven.atlassian.com/repository/public/org/apache/maven/wagon/wagon-ssh-external/maven-metadata.xml
[WARNING] Could not transfer metadata org.apache.maven.wagon:wagon-ssh-external/maven-metadata.xml from/to apache.snapshots.https (https://repository.apache.org/content/repositories/snapshots): transfer failed for https://repository.apache.org/content/repositories/snapshots/org/apache/maven/wagon/wagon-ssh-external/maven-metadata.xml
[WARNING] Could not transfer metadata org.apache.maven.wagon:wagon-ssh-external/maven-metadata.xml from/to central (https://repo.maven.apache.org/maven2): transfer failed for https://repo.maven.apache.org/maven2/org/apache/maven/wagon/wagon-ssh-external/maven-metadata.xml
[ERROR] [ERROR] Some problems were encountered while processing the POMs:
[WARNING] 'dependencies.dependency.(groupId:artifactId:type:classifier)' must be unique: org.apache.zookeeper:zookeeper:jar -> duplicate declaration of version (?) @ line 124, column 17
[ERROR] Unresolveable build extension: Error resolving version for plugin 'org.apache.maven.wagon:wagon-ssh-external' from the repositories [local (/home/vagrant/.m2/repository), maven2-repository.dev.java.net (https://download.java.net/maven/2/), maven2-glassfish-repository.dev.java.net (https://download.java.net/maven/glassfish/), maven2-repository.atlassian (https://maven.atlassian.com/repository/public), apache.snapshots.https (https://repository.apache.org/content/repositories/snapshots), central (https://repo.maven.apache.org/maven2)]: Plugin not found in any plugin repository @
[WARNING] 'build.plugins.plugin.(groupId:artifactId)' must be unique but found duplicate declaration of plugin org.apache.maven.plugins:maven-compiler-plugin @ line 334, column 15
[WARNING] 'build.plugins.plugin.version' for org.vafer:jdeb is missing. @ line 132, column 15
@
[ERROR] The build could not read 1 project -> [Help 1]
[ERROR]
[ERROR] The project org.apache.ambari:ambari-agent:2.7.6.0.0 (/home/vagrant/ambari-src/apache-ambari-2.7.6-src/ambari-agent/pom.xml) has 1 error
[ERROR] Unresolveable build extension: Error resolving version for plugin 'org.apache.maven.wagon:wagon-ssh-external' from the repositories [local (/home/vagrant/.m2/repository), maven2-repository.dev.java.net (https://download.java.net/maven/2/), maven2-glassfish-repository.dev.java.net (https://download.java.net/maven/glassfish/), maven2-repository.atlassian (https://maven.atlassian.com/repository/public), apache.snapshots.https (https://repository.apache.org/content/repositories/snapshots), central (https://repo.maven.apache.org/maven2)]: Plugin not found in any plugin repository -> [Help 2]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[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 read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException
[ERROR] [Help 2] http://cwiki.apache.org/confluence/display/MAVEN/PluginManagerException
I have the latest version of Ambari (2.7.6) and the latest version of Maven (3.8.6)
Here is the output of mvn -version
Apache Maven 3.8.6 (84538c9988a25aec085021c365c560670ad80f63)
Maven home: /opt/maven
Java version: 1.8.0_292, vendor: Private Build, runtime: /usr/lib/jvm/java-8-openjdk-amd64/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "3.13.0-170-generic", arch: "amd64", family: "unix"