Hi Team,

Where can I find the version compatibility matrix for Apache Ambari - 2.7.5? I 
am curious to know the versions of Apache Hadoop & Apache Hive that Ambari 
2.7.5 supports. 

I am trying to follow 
https://cwiki.apache.org/confluence/display/AMBARI/Installation+Guide+for+Ambari+2.7.5
 
<https://cwiki.apache.org/confluence/display/AMBARI/Installation+Guide+for+Ambari+2.7.5>
 to setup Ambari on a CentOs - 7.6 machine and when trying to build from source 
using Maven getting the below error. Any help in resolving this would be 
greatly appreciated.

20:15:53 root@master101:apache-ambari-2.7.5-src # mvn versions:set 
-DnewVersion=2.7.5.0.0
[INFO] Scanning for projects...
Downloading from maven2-repository.atlassian: 
https://maven.atlassian.com/repository/public/org/apache/maven/wagon/wagon-ssh-external/maven-metadata.xml
 
<https://maven.atlassian.com/repository/public/org/apache/maven/wagon/wagon-ssh-external/maven-metadata.xml>
Downloading from maven2-repository.dev.java.net 
<http://maven2-repository.dev.java.net/>: 
https://download.java.net/maven/2/org/apache/maven/wagon/wagon-ssh-external/maven-metadata.xml
 
<https://download.java.net/maven/2/org/apache/maven/wagon/wagon-ssh-external/maven-metadata.xml>
Downloading from apache.snapshots.https: 
https://repository.apache.org/content/repositories/snapshots/org/apache/maven/wagon/wagon-ssh-external/maven-metadata.xml
 
<https://repository.apache.org/content/repositories/snapshots/org/apache/maven/wagon/wagon-ssh-external/maven-metadata.xml>
Downloading from maven2-glassfish-repository.dev.java.net 
<http://maven2-glassfish-repository.dev.java.net/>: 
https://download.java.net/maven/glassfish/org/apache/maven/wagon/wagon-ssh-external/maven-metadata.xml
 
<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
 
<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 
<http://maven2-repository.dev.java.net/>(https://download.java.net/maven/2/ 
<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
 
<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 
<http://maven2-glassfish-repository.dev.java.net/>(https://download.java.net/maven/glassfish/
 <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
 
<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 
<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
 
<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 
<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
 
<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 <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
 
<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 
(/root/.m2/repository), maven2-repository.dev.java.net 
<http://maven2-repository.dev.java.net/> (https://download.java.net/maven/2/ 
<https://download.java.net/maven/2/>), maven2-glassfish-repository.dev.java.net 
<http://maven2-glassfish-repository.dev.java.net/>(https://download.java.net/maven/glassfish/
 <https://download.java.net/maven/glassfish/>), maven2-repository.atlassian 
(https://maven.atlassian.com/repository/public 
<https://maven.atlassian.com/repository/public>), apache.snapshots.https 
(https://repository.apache.org/content/repositories/snapshots 
<https://repository.apache.org/content/repositories/snapshots>), central 
(https://repo.maven.apache.org/maven2 <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:2.7.5.0.0 
(/root/apache-ambari-2.7.5-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 
(/root/.m2/repository), maven2-repository.dev.java.net 
<http://maven2-repository.dev.java.net/> (https://download.java.net/maven/2/ 
<https://download.java.net/maven/2/>), maven2-glassfish-repository.dev.java.net 
<http://maven2-glassfish-repository.dev.java.net/>(https://download.java.net/maven/glassfish/
 <https://download.java.net/maven/glassfish/>), maven2-repository.atlassian 
(https://maven.atlassian.com/repository/public 
<https://maven.atlassian.com/repository/public>), apache.snapshots.https 
(https://repository.apache.org/content/repositories/snapshots 
<https://repository.apache.org/content/repositories/snapshots>), central 
(https://repo.maven.apache.org/maven2 <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 
<http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException>
[ERROR] [Help 2] 
http://cwiki.apache.org/confluence/display/MAVEN/PluginManagerException 
<http://cwiki.apache.org/confluence/display/MAVEN/PluginManagerException>
QA-SAC 20:22:24 root@dwhmaster101:apache-ambari-2.7.5-src # mvn versions:set 
-DnewVersion=2.7.5.0.0 -e
[INFO] Error stacktraces are turned on.
[INFO] Scanning for projects...
Downloading from maven2-glassfish-repository.dev.java.net 
<http://maven2-glassfish-repository.dev.java.net/>: 
https://download.java.net/maven/glassfish/org/apache/maven/wagon/wagon-ssh-external/maven-metadata.xml
 
<https://download.java.net/maven/glassfish/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
 
<https://maven.atlassian.com/repository/public/org/apache/maven/wagon/wagon-ssh-external/maven-metadata.xml>
Downloading from maven2-repository.dev.java.net 
<http://maven2-repository.dev.java.net/>: 
https://download.java.net/maven/2/org/apache/maven/wagon/wagon-ssh-external/maven-metadata.xml
 
<https://download.java.net/maven/2/org/apache/maven/wagon/wagon-ssh-external/maven-metadata.xml>
Downloading from apache.snapshots.https: 
https://repository.apache.org/content/repositories/snapshots/org/apache/maven/wagon/wagon-ssh-external/maven-metadata.xml
 
<https://repository.apache.org/content/repositories/snapshots/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
 
<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 
<http://maven2-repository.dev.java.net/>(https://download.java.net/maven/2/ 
<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
 
<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 
<http://maven2-glassfish-repository.dev.java.net/>(https://download.java.net/maven/glassfish/
 <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
 
<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 
<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
 
<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 
<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
 
<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 <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
 
<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 
(/root/.m2/repository), maven2-repository.dev.java.net 
<http://maven2-repository.dev.java.net/> (https://download.java.net/maven/2/ 
<https://download.java.net/maven/2/>), maven2-glassfish-repository.dev.java.net 
<http://maven2-glassfish-repository.dev.java.net/>(https://download.java.net/maven/glassfish/
 <https://download.java.net/maven/glassfish/>), maven2-repository.atlassian 
(https://maven.atlassian.com/repository/public 
<https://maven.atlassian.com/repository/public>), apache.snapshots.https 
(https://repository.apache.org/content/repositories/snapshots 
<https://repository.apache.org/content/repositories/snapshots>), central 
(https://repo.maven.apache.org/maven2 <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]
org.apache.maven.project.ProjectBuildingException: 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 
(/root/.m2/repository), maven2-repository.dev.java.net 
<http://maven2-repository.dev.java.net/> (https://download.java.net/maven/2/ 
<https://download.java.net/maven/2/>), maven2-glassfish-repository.dev.java.net 
<http://maven2-glassfish-repository.dev.java.net/>(https://download.java.net/maven/glassfish/
 <https://download.java.net/maven/glassfish/>), maven2-repository.atlassian 
(https://maven.atlassian.com/repository/public 
<https://maven.atlassian.com/repository/public>), apache.snapshots.https 
(https://repository.apache.org/content/repositories/snapshots 
<https://repository.apache.org/content/repositories/snapshots>), central 
(https://repo.maven.apache.org/maven2 <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

   at org.apache.maven.project.DefaultProjectBuilder.build 
(DefaultProjectBuilder.java:397)
   at org.apache.maven.graph.DefaultGraphBuilder.collectProjects 
(DefaultGraphBuilder.java:414)
   at org.apache.maven.graph.DefaultGraphBuilder.getProjectsForMavenReactor 
(DefaultGraphBuilder.java:405)
   at org.apache.maven.graph.DefaultGraphBuilder.build 
(DefaultGraphBuilder.java:82)
   at org.apache.maven.DefaultMaven.buildGraph (DefaultMaven.java:507)
   at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:219)
   at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
   at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
   at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
   at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
   at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
   at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke 
(NativeMethodAccessorImpl.java:62)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke 
(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke (Method.java:498)
   at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced 
(Launcher.java:282)
   at org.codehaus.plexus.classworlds.launcher.Launcher.launch 
(Launcher.java:225)
   at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode 
(Launcher.java:406)
   at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
[ERROR]   
[ERROR]   The project org.apache.ambari:ambari-agent:2.7.5.0.0 
(/root/apache-ambari-2.7.5-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 
(/root/.m2/repository), maven2-repository.dev.java.net 
<http://maven2-repository.dev.java.net/> (https://download.java.net/maven/2/ 
<https://download.java.net/maven/2/>), maven2-glassfish-repository.dev.java.net 
<http://maven2-glassfish-repository.dev.java.net/>(https://download.java.net/maven/glassfish/
 <https://download.java.net/maven/glassfish/>), maven2-repository.atlassian 
(https://maven.atlassian.com/repository/public 
<https://maven.atlassian.com/repository/public>), apache.snapshots.https 
(https://repository.apache.org/content/repositories/snapshots 
<https://repository.apache.org/content/repositories/snapshots>), central 
(https://repo.maven.apache.org/maven2 <https://repo.maven.apache.org/maven2>)]: 
Plugin not found in any plugin repository -> [Help 2]
org.apache.maven.plugin.PluginManagerException: Error resolving version for 
plugin 'org.apache.maven.wagon:wagon-ssh-external' from the repositories [local 
(/root/.m2/repository), maven2-repository.dev.java.net 
<http://maven2-repository.dev.java.net/> (https://download.java.net/maven/2/ 
<https://download.java.net/maven/2/>), maven2-glassfish-repository.dev.java.net 
<http://maven2-glassfish-repository.dev.java.net/>(https://download.java.net/maven/glassfish/
 <https://download.java.net/maven/glassfish/>), maven2-repository.atlassian 
(https://maven.atlassian.com/repository/public 
<https://maven.atlassian.com/repository/public>), apache.snapshots.https 
(https://repository.apache.org/content/repositories/snapshots 
<https://repository.apache.org/content/repositories/snapshots>), central 
(https://repo.maven.apache.org/maven2 <https://repo.maven.apache.org/maven2>)]: 
Plugin not found in any plugin repository
   at 
org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupExtensionsRealm 
(DefaultMavenPluginManager.java:818)
   at org.apache.maven.project.DefaultProjectBuildingHelper.createProjectRealm 
(DefaultProjectBuildingHelper.java:197)
   at 
org.apache.maven.project.DefaultModelBuildingListener.buildExtensionsAssembled 
(DefaultModelBuildingListener.java:101)
   at org.apache.maven.model.building.ModelBuildingEventCatapult$1.fire 
(ModelBuildingEventCatapult.java:44)
   at org.apache.maven.model.building.DefaultModelBuilder.fireEvent 
(DefaultModelBuilder.java:1368)
   at org.apache.maven.model.building.DefaultModelBuilder.build 
(DefaultModelBuilder.java:460)
   at org.apache.maven.model.building.DefaultModelBuilder.build 
(DefaultModelBuilder.java:440)
   at org.apache.maven.project.DefaultProjectBuilder.build 
(DefaultProjectBuilder.java:618)
   at org.apache.maven.project.DefaultProjectBuilder.build 
(DefaultProjectBuilder.java:633)
   at org.apache.maven.project.DefaultProjectBuilder.build 
(DefaultProjectBuilder.java:387)
   at org.apache.maven.graph.DefaultGraphBuilder.collectProjects 
(DefaultGraphBuilder.java:414)
   at org.apache.maven.graph.DefaultGraphBuilder.getProjectsForMavenReactor 
(DefaultGraphBuilder.java:405)
   at org.apache.maven.graph.DefaultGraphBuilder.build 
(DefaultGraphBuilder.java:82)
   at org.apache.maven.DefaultMaven.buildGraph (DefaultMaven.java:507)
   at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:219)
   at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
   at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
   at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
   at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
   at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
   at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke 
(NativeMethodAccessorImpl.java:62)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke 
(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke (Method.java:498)
   at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced 
(Launcher.java:282)
   at org.codehaus.plexus.classworlds.launcher.Launcher.launch 
(Launcher.java:225)
   at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode 
(Launcher.java:406)
   at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
Caused by: org.apache.maven.plugin.version.PluginVersionResolutionException: 
Error resolving version for plugin 'org.apache.maven.wagon:wagon-ssh-external' 
from the repositories [local (/root/.m2/repository), 
maven2-repository.dev.java.net <http://maven2-repository.dev.java.net/> 
(https://download.java.net/maven/2/ <https://download.java.net/maven/2/>), 
maven2-glassfish-repository.dev.java.net 
<http://maven2-glassfish-repository.dev.java.net/>(https://download.java.net/maven/glassfish/
 <https://download.java.net/maven/glassfish/>), maven2-repository.atlassian 
(https://maven.atlassian.com/repository/public 
<https://maven.atlassian.com/repository/public>), apache.snapshots.https 
(https://repository.apache.org/content/repositories/snapshots 
<https://repository.apache.org/content/repositories/snapshots>), central 
(https://repo.maven.apache.org/maven2 <https://repo.maven.apache.org/maven2>)]: 
Plugin not found in any plugin repository
   at 
org.apache.maven.plugin.version.internal.DefaultPluginVersionResolver.selectVersion
 (DefaultPluginVersionResolver.java:236)
   at 
org.apache.maven.plugin.version.internal.DefaultPluginVersionResolver.resolveFromRepository
 (DefaultPluginVersionResolver.java:146)
   at 
org.apache.maven.plugin.version.internal.DefaultPluginVersionResolver.resolve 
(DefaultPluginVersionResolver.java:94)
   at 
org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupExtensionsRealm 
(DefaultMavenPluginManager.java:814)
   at org.apache.maven.project.DefaultProjectBuildingHelper.createProjectRealm 
(DefaultProjectBuildingHelper.java:197)
   at 
org.apache.maven.project.DefaultModelBuildingListener.buildExtensionsAssembled 
(DefaultModelBuildingListener.java:101)
   at org.apache.maven.model.building.ModelBuildingEventCatapult$1.fire 
(ModelBuildingEventCatapult.java:44)
   at org.apache.maven.model.building.DefaultModelBuilder.fireEvent 
(DefaultModelBuilder.java:1368)
   at org.apache.maven.model.building.DefaultModelBuilder.build 
(DefaultModelBuilder.java:460)
   at org.apache.maven.model.building.DefaultModelBuilder.build 
(DefaultModelBuilder.java:440)
   at org.apache.maven.project.DefaultProjectBuilder.build 
(DefaultProjectBuilder.java:618)
   at org.apache.maven.project.DefaultProjectBuilder.build 
(DefaultProjectBuilder.java:633)
   at org.apache.maven.project.DefaultProjectBuilder.build 
(DefaultProjectBuilder.java:387)
   at org.apache.maven.graph.DefaultGraphBuilder.collectProjects 
(DefaultGraphBuilder.java:414)
   at org.apache.maven.graph.DefaultGraphBuilder.getProjectsForMavenReactor 
(DefaultGraphBuilder.java:405)
   at org.apache.maven.graph.DefaultGraphBuilder.build 
(DefaultGraphBuilder.java:82)
   at org.apache.maven.DefaultMaven.buildGraph (DefaultMaven.java:507)
   at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:219)
   at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
   at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
   at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
   at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
   at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
   at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke 
(NativeMethodAccessorImpl.java:62)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke 
(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke (Method.java:498)
   at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced 
(Launcher.java:282)
   at org.codehaus.plexus.classworlds.launcher.Launcher.launch 
(Launcher.java:225)
   at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode 
(Launcher.java:406)
   at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
[ERROR] 
[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 
<http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException>
[ERROR] [Help 2] 
http://cwiki.apache.org/confluence/display/MAVEN/PluginManagerException 
<http://cwiki.apache.org/confluence/display/MAVEN/PluginManagerException>


Thanks,
Ravi

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