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Configuration Issue with Tycho/Maven: "Tycho build extension not configured"
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Solved maventychomaven-extension
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I have been following Vogella's tutorial (http://www.vogella.com/articles/EclipseTycho/article.html) on using Tycho to set up a Maven build environment for my project. My project is already quite big with several plugins, features and an update site, however I managed to get mvn clean and mvn compile to work fine, and followed the tutorial all the way up to mvn install. The issue I am facing now is confusing. I consistently get the following error:

[INFO] --- tycho-p2-director-plugin:0.16.0:materialize-products (materialize-products) @ parent ---
[DEBUG] Configuring mojo org.eclipse.tycho:tycho-p2-director-plugin:0.16.0:materialize-products from plugin realm ClassRealm[plugin>org.eclipse.tycho:tycho-p2-director-plugin:0.16.0, parent: sun.misc.Launcher$AppClassLoader@35ce36]
[DEBUG] Configuring mojo 'org.eclipse.tycho:tycho-p2-director-plugin:0.16.0:materialize-products' with basic configurator -->
[DEBUG]   (f) directorRuntime = internal
[DEBUG]   (f) installFeatures = true
[DEBUG]   (f) profile = DefaultProfile
[DEBUG]   (f) project = MavenProject: com.micrium.configbuilder:parent:1.1.0-SNAPSHOT @ C:\Documents and Settings\Thomas Sylvester\git\plugin-suite\com.micrium.configbuilder.tycho.master\pom.xml
[DEBUG]   (f) session = org.apache.maven.execution.MavenSession@1335332
[DEBUG]   (f) source = targetPlatform
[DEBUG] -- end configuration --
[INFO] No product definitions found. Nothing to do.
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] parent ............................................ FAILURE [0.201s]

Snipped the list of plugins from this stack trace. They were all skipped. Parent had the failure.

[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 37.735s
[INFO] Finished at: Thu Feb 21 06:42:47 PST 2013
[INFO] Final Memory: 65M/158M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.eclipse.tycho:tycho-p2-director-plugin:0.16.0:materialize-products (materialize-products) on project parent: Execution materialize-products of goal org.eclipse.tycho:tycho-p2-director-plugin:0.16.0:materialize-products failed: Tycho build extension not configured for MavenProject: com.micrium.configbuilder:parent:1.1.0-SNAPSHOT @ C:\Documents and Settings\Erika Redmark\git\plugin-suite\com.micrium.configbuilder.tycho.master\pom.xml -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.eclipse.tycho:tycho-p2-director-plugin:0.16.0:materialize-products (materialize-products) on project parent: Execution materialize-products of goal org.eclipse.tycho:tycho-p2-director-plugin:0.16.0:materialize-products failed: Tycho build extension not configured for MavenProject: com.micrium.configbuilder:parent:1.1.0-SNAPSHOT @ C:\Documents and Settings\Erika Redmark\git\plugin-suite\com.micrium.configbuilder.tycho.master\pom.xml
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:225)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
        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(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution materialize-products of goal org.eclipse.tycho:tycho-p2-director-plug
in:0.16.0:materialize-products failed: Tycho build extension not configured for MavenProject: com.micrium.configbuilder:parent:1.1.0-SNAPSHO
T @ C:\Documents and Settings\Erika Redmark\git\plugin-suite\com.micrium.configbuilder.tycho.master\pom.xml
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:110)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
        ... 19 more
Caused by: java.lang.IllegalStateException: Tycho build extension not configured for MavenProject: com.micrium.configbuilder:parent:1.1.0-SN
APSHOT @ C:\Documents and Settings\Erika Redmark\git\plugin-suite\com.micrium.configbuilder.tycho.master\pom.xml
        at org.eclipse.tycho.core.utils.TychoProjectUtils.getTargetPlatform(TychoProjectUtils.java:63)
        at org.eclipse.tycho.p2.facade.RepositoryReferenceTool.addTargetPlatformRepository(RepositoryReferenceTool.java:116)
        at org.eclipse.tycho.p2.facade.RepositoryReferenceTool.getVisibleRepositories(RepositoryReferenceTool.java:97)
        at org.eclipse.tycho.plugins.p2.director.DirectorMojo.getTargetPlatformRepositories(DirectorMojo.java:167)
        at org.eclipse.tycho.plugins.p2.director.DirectorMojo.getSourceRepositories(DirectorMojo.java:145)
        at org.eclipse.tycho.plugins.p2.director.DirectorMojo.execute(DirectorMojo.java:93)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
        ... 20 more
[ERROR]
[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/PluginExecutionException

I see that the root of the cause is that the Target Platform is somehow undefined. But when I look up Target Platform on the Eclipse wiki (http://wiki.eclipse.org/Tycho/Target_Platform) it states:

In order allow Tycho to resolve the project dependencies against anything from a specific p2 repository, add that repository in the section of the POM... In terms of the target platform, this means that the entire content of the p2 repositories specified in this way become part of the target platform.

I have that section in my POM. In fact, here is the full content of my parent POM (defined in a seperate general project as per the tutorial). I omitted only the declaration of all my modules:

<?xml version="1.0" encoding="UTF-8"?>
<project>
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.micrium.configbuilder</groupId>
    <artifactId>parent</artifactId>
    <version>1.1.0-SNAPSHOT</version>
    <packaging>pom</packaging>
    <modules>
        ... bunch of modules ...
    </modules>

    <properties>
        <tycho-version>0.16.0</tycho-version>
    </properties>

    <repositories>
        <repository>
            <id>helios</id>
            <layout>p2</layout>
            <url>http://download.eclipse.org/releases/helios</url>
        </repository>
    </repositories>


    <build>
        <plugins>

            <plugin>
                <groupId>org.eclipse.tycho</groupId>
                <artifactId>tycho-maven-plugin</artifactId>
                <version>0.16.0</version>
                <extensions>true</extensions>
            </plugin>
            <plugin>
                <groupId>org.eclipse.tycho</groupId>
                <artifactId>tycho-p2-director-plugin</artifactId>
                <version>0.16.0</version>
                <executions>
                    <execution>
                        <id>materialize-products</id>
                        <goals>
                            <goal>materialize-products</goal>
                        </goals>
                    </execution>
                    <execution>
                        <id>archive-products</id>
                        <goals>
                            <goal>archive-products</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>

    </build>

</project>

Have I missed something? I seemed to have defined what the documentation addresses as the target platform. Am I even seeing the right issue?

Symbolism answered 21/2, 2013 at 16:0 Comment(3)
Erika, I would appreciate if you could remove the resolver=p2 configuration from your examples. This parameter does not exist for the tycho-maven-plugin and the tycho-p2-director-plugin (and for the not mentioned target-platform-configuration plugin, p2 has been the default value for ages). – Ostiary
I removed them from my code as well as the example. I had recently added them trying to fix the problem, but as I see now they were irrelevant. Thank you. – Symbolism
Thanks. I fixed the tutorial. – Ineffective
O
14

The problem is that you are trying to execute the tycho-p2-director-plugin in your parent POM. This won't work – the plug-in can only be executed in modules with eclipse-repository packaging type. Moving the configuration tycho-p2-director-plugin configuration into your eclipse-repository module(s) will solve the problem described here.

Unfortunately, Tycho doesn't give a good error message in this case. It states "Tycho build extension not configured", but in fact it is configured but is just not executed for the packaging type pom.

Ostiary answered 21/2, 2013 at 16:51 Comment(1)
Sweet, it seems to be working now. Every module was a success. Thank you very much. – Symbolism

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