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[recommenders-dev] mvn clean install cannot pass successfully

hi,everyone,I check out the recommender source code from git repository and execute 'mvn clean install' as README's instruction,but
finally I meet an error from maven3, IMO, this error happens because of not setting the eclipse home so maven cannot put the generated jar files to destination,but I don't know how to deal with it?
 
org.apache.maven.InternalErrorException: Internal error: java.lang.RuntimeExcept
ion: org.eclipse.equinox.p2.core.ProvisionException: No solution found because t
he problem is unsatisfiable.
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:168)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Laun
cher.java:290)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.jav
a:230)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(La
uncher.java:409)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:
352)
Caused by: java.lang.RuntimeException: org.eclipse.equinox.p2.core.ProvisionExce
ption: No solution found because the problem is unsatisfiable.
        at org.sonatype.tycho.p2.impl.resolver.ProjectorResolutionStrategy.resol
ve(ProjectorResolutionStrategy.java:98)
        at org.sonatype.tycho.p2.impl.resolver.P2ResolverImpl.resolveProject(P2R
esolverImpl.java:335)
        at org.sonatype.tycho.p2.impl.resolver.P2ResolverImpl.resolveProject(P2R
esolverImpl.java:300)
        at org.sonatype.tycho.p2.facade.P2TargetPlatformResolver.doResolvePlatfo
rm(P2TargetPlatformResolver.java:406)
        at org.sonatype.tycho.p2.facade.P2TargetPlatformResolver.resolvePlatform
(P2TargetPlatformResolver.java:105)
        at org.codehaus.tycho.resolver.DefaultTychoDependencyResolver.resolvePro
ject(DefaultTychoDependencyResolver.java:68)
        at org.codehaus.tycho.maven.TychoMavenLifecycleParticipant.afterProjects
Read(TychoMavenLifecycleParticipant.java:94)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:273)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
        ... 11 more
Caused by: org.eclipse.equinox.p2.core.ProvisionException: No solution found bec
ause the problem is unsatisfiable.
        ... 20 more

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