第谷Maven离线版本

Question

We are building our Eclipse RCP application using Maven/Tycho. Inside eclipse everything works as expected with

clean install

However, as our build server is a virtual machine without internet connection, this won't work. We run

clean install --offline 

on it but it keeps saying:

The POM for org.eclipse.tycho:tycho-maven-plugin:jar:0.25.0 is missing, no dependency information available

[ERROR] Some problems were encountered while processing the POMs:

Unresolveable build extension: Plugin org.eclipse.tycho:tycho-maven-plugin:0.25.0 or one of its dependencies could not be resolved: 
The following artifacts could not be resolved: org.eclipse.tycho:tycho-maven-plugin:jar:0.25.0, org.codehaus.plexus:plexus-utils:jar:1.1:
Cannot access central (https://repo.maven.apache.org/maven2) in offline mode and the artifact org.eclipse.tycho:tycho-maven-plugin:jar:0.25.0 has not been downloaded from it before. 

Is it possible to have the tycho-maven-plugin available offline? We can provide the POMs as well, if you need it for answering.

Answer 1

Yes, Tycho does support --offline (at least since Tycho 0.25, which fixes Bug 461787 ). The error message you quote, however, indicates that Tycho itself was not downloaded completely by your initial mvn clean install .

Check that both org.eclipse.tycho:tycho-maven-plugin:jar:0.25.0 and org.codehaus.plexus:plexus-utils:jar:1.1 (from the error message) are present in your local Maven repository, as Maven complains it can't find them there. Did you clean your local repository in the meantime?