我一直关注Vogella的教程（http://www.vogella.com/articles/EclipseTycho/article.html）使用Tycho为我的项目设置Maven构建环境。我的项目已经非常庞大，有几个插件，功能和更新网站，但我设法让mvn clean和mvn compile工作正常，并按照教程一直到mvn install 。我现在面临的问题令人困惑。我一直收到以下错误：
[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]
从此堆栈跟踪中截取了插件列表。他们都被跳过了。父母失败了。
[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
我看到原因的根源是目标平台以某种方式未定义。但是当我在Eclipse wiki（http://wiki.eclipse.org/Tycho/Target_Platform）上查找Target Platform时，它声明：
为了让Tycho解决项目依赖关系 来自特定p2存储库的任何内容，在中添加该存储库 POM部分......就目标平台而言， 这意味着指定的p2存储库的全部内容 这种方式成为目标平台的一部分。
我的POM中有那个部分。实际上，这是我的父POM的完整内容（根据教程在单独的一般项目中定义）。我只省略了所有模块的声明：
<?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>
我错过了什么吗？我似乎已经定义了文档作为目标平台的内容。我甚至看到了正确的问题吗？
答案 0 :(得分：13)
问题是您正在尝试在父POM中执行tycho-p2-director-plugin。这不起作用 - 插件只能在eclipse-repository打包类型的模块中执行。将配置tycho-p2-director-plugin配置移动到eclipse-repository模块中将解决此处描述的问题。
不幸的是，在这种情况下，Tycho没有给出好的错误信息。它声明“未配置Tycho构建扩展”，但事实上它已配置但仅针对打包类型pom执行。