我已经安装了 Eclipse Indigo SR2 EE：
Eclipse Java EE IDE for Web Developers.
Version: Indigo Service Release 2
Build id: 20120216-1857
甚至在从 Marketplace 安装 m2e 之后，我在 File->Import、File->New->Project... 或 Window->Preferences 中也没有任何 Maven 菜单项。
我真的很困惑。我在一台 Fedora 17 x64 机器上——而我的另一台 Fedora 17 x64 机器在使用相同版本的 Eclipse 时运行良好！
m2e 在“已安装的软件”中清楚显示：
m2e - Maven Integration for Eclipse 1.0.200.20111228-1245 org.eclipse.m2e.feature.feature.group Eclipse.org - m2e
...并出现在配置报告中。然而它在 UI 中是完全不可见的，这让我发疯了。
更新：错误日志中的某些内容可能很重要 - 至少，它与 m2e 相关。请参阅-consolelog 此处或帖子末尾附近的缩写粘贴。
我对 Eclipse 还很陌生，所以我可能正在做一些愚蠢的事情——但无论是什么，Eclipse 都可以让问题更加明显。
这与“Eclipse Indigo for JAVA EE + Maven 插件 = Maven 菜单未出现在导入和首选项中”不同；他们的 m2e 没有正确安装，这显示为已安装并且 Eclipse 不会重新安装它，因为它已经安装，因此在“安装新软件...”中显示为灰色。
从命令行启动 Eclipse 时，stdout/stderr 上不会发出任何错误。
我正在使用：
java -version
java version "1.7.0_b147-icedtea"
OpenJDK Runtime Environment (fedora-2.1.fc17.6-x86_64)
OpenJDK 64-Bit Server VM (build 22.0-b10, mixed mode)
这在工作的工作站上运行良好。ls -d plugins/*m2e*显示：
plugins/org.eclipse.m2e.archetype.common_1.0.200.20111228-1245 plugins/org.eclipse.m2e.logback.appender_1.0.200.20111228-1245.jar
plugins/org.eclipse.m2e.core_1.0.200.20111228-1245.jar plugins/org.eclipse.m2e.logback.configuration_1.0.200.20111228-1245.jar
plugins/org.eclipse.m2e.core.ui_1.0.200.20111228-1245.jar plugins/org.eclipse.m2e.maven.indexer_1.0.200.20111228-1245
plugins/org.eclipse.m2e.discovery_1.0.200.20111228-1245.jar plugins/org.eclipse.m2e.maven.runtime_1.0.200.20111228-1245
plugins/org.eclipse.m2e.editor_1.0.200.20111228-1245.jar plugins/org.eclipse.m2e.model.edit_1.0.200.20111228-1245.jar
plugins/org.eclipse.m2e.editor.xml_1.0.200.20111228-1245.jar plugins/org.eclipse.m2e.refactoring_1.0.200.20111228-1245.jar
plugins/org.eclipse.m2e.jdt_1.0.200.20111228-1245.jar plugins/org.eclipse.m2e.scm_1.0.200.20111228-1245.jar
plugins/org.eclipse.m2e.launching_1.0.200.20111228-1245.jar plugins/org.eclipse.m2e.usagedata_1.0.200.20111228-1245.jar
plugins/org.eclipse.m2e.lifecyclemapping.defaults_1.0.200.20111228-1245 plugins/org.sonatype.m2e.mavenarchiver_0.15.0.201109290002.jar
可能很严重的-consolelog错误：
16:58:08,042 |-ERROR in ch.qos.logback.core.joran.action.NestedComplexPropertyIA - Could not create component [filter] of type [org.eclipse.m2e.logback.appender.ConsoleAppenderFilter] java.lang.ClassNotFoundException: org.eclipse.m2e.logback.appender.ConsoleAppenderFilter
at java.lang.ClassNotFoundException: org.eclipse.m2e.logback.appender.ConsoleAppenderFilter
at at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:513)
at at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:429)
at at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:417)
at at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
at at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at at ch.qos.logback.core.util.Loader.loadClass(Loader.java:110)
at at ch.qos.logback.core.joran.action.NestedComplexPropertyIA.begin(NestedComplexPropertyIA.java:100)
at at ch.qos.logback.core.joran.spi.Interpreter.callBeginAction(Interpreter.java:273)
at at ch.qos.logback.core.joran.spi.Interpreter.startElement(Interpreter.java:145)
at at ch.qos.logback.core.joran.spi.Interpreter.startElement(Interpreter.java:127)
at at ch.qos.logback.core.joran.spi.EventPlayer.play(EventPlayer.java:40)
at at ch.qos.logback.core.joran.spi.Interpreter.play(Interpreter.java:332)
at at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:126)
at at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:93)
at at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:52)
at at org.eclipse.m2e.logback.configuration.LogPlugin.loadConfiguration(LogPlugin.java:190)
at at org.eclipse.m2e.logback.configuration.LogPlugin.configureLogback(LogPlugin.java:149)
at at org.eclipse.m2e.logback.configuration.LogPlugin.access$2(LogPlugin.java:112)
at at org.eclipse.m2e.logback.configuration.LogPlugin$1.run(LogPlugin.java:65)
at at java.util.TimerThread.mainLoop(Timer.java:555)
at at java.util.TimerThread.run(Timer.java:505)
从 Eclipse 安装的软件列表：
Context and Dependency Injection Tools 1.2.0.v20120504-0314-H63-Beta3 org.jboss.tools.cdi.feature.feature.group JBoss by Red Hat
Eclipse EGit 1.3.0.201202151440-r org.eclipse.egit.feature.group Eclipse EGit
Eclipse IDE for Java EE Developers 1.4.2.20120213-0813 epp.package.jee null
Eclipse JGit 1.3.0.201202151440-r org.eclipse.jgit.feature.group Eclipse JGit
Forge Tools 1.0.0.v20120504-2048-H71-Beta3 org.jboss.tools.forge.feature.feature.group JBoss by Red Hat
Hibernate Tools 3.4.0.v20120504-2121-H72-Beta3 org.hibernate.eclipse.feature.feature.group JBoss by Red Hat
JBoss Archives Tools 3.2.1.v20120504-0235-H64-Beta3 org.jboss.ide.eclipse.archives.feature.feature.group JBoss by Red Hat
JBoss Central Community 1.0.0.v20120514-1749-H82-Beta3 org.jboss.tools.community.central.feature.feature.group JBoss by Red Hat
JBoss JAX-RS Tools 1.2.2.v20120514-1752-H106-Beta3 org.jboss.tools.ws.jaxrs.feature.feature.group JBoss by Red Hat
JBoss Maven CDI Configurator 1.3.0.v20120514-1625-H96-Beta3 org.jboss.tools.maven.cdi.feature.feature.group JBoss by Red Hat
JBoss Maven Hibernate Configurator 1.3.0.v20120514-1625-H96-Beta3 org.jboss.tools.maven.hibernate.feature.feature.group JBoss by Red Hat
JBoss Maven Integration 1.3.0.v20120514-1625-H96-Beta3 org.jboss.tools.maven.feature.feature.group JBoss by Red Hat
JBoss Maven JAX-RS Configurator 1.3.0.v20120514-1625-H96-Beta3 org.jboss.tools.maven.jaxrs.feature.feature.group JBoss by Red Hat
JBoss Maven JPA Configurator 1.3.0.v20120514-1625-H96-Beta3 org.jboss.tools.maven.jpa.feature.feature.group JBoss by Red Hat
JBoss Maven JSF Configurator 1.3.0.v20120514-1625-H96-Beta3 org.jboss.tools.maven.jsf.feature.feature.group JBoss by Red Hat
JBoss Maven Project Examples 1.3.0.v20120514-1625-H96-Beta3 org.jboss.tools.maven.project.examples.feature.feature.group JBoss by Red Hat
JBoss Maven Seam Integration 1.3.0.v20120514-1625-H96-Beta3 org.jboss.tools.maven.seam.feature.feature.group JBoss by Red Hat
JBoss OpenShift Tools 2.3.0.v20120510-2034-H93-Beta3 org.jboss.tools.openshift.express.feature.feature.group JBoss by Red Hat
JBoss Packaging Maven Configurators 1.3.0.v20120514-1625-H96-Beta3 org.jboss.tools.maven.jbosspackaging.feature.feature.group JBoss by Red Hat
JBoss Runtime AS Detector 1.3.0.v20120504-1621-H89-Beta3 org.jboss.tools.runtime.as.detector.feature.feature.group JBoss by Red Hat
JBoss Runtime Detection Core 1.3.0.v20120504-1621-H89-Beta3 org.jboss.tools.runtime.core.feature.feature.group JBoss by Red Hat
JBoss Tools Community Project Examples 1.2.1.v20120504-1659-H91-Beta3 org.jboss.tools.community.project.examples.feature.feature.group JBoss by Red Hat
JBoss Tools EGit Integration (Experimental) 2.3.0.v20120510-2034-H93-Beta3 org.jboss.tools.openshift.egit.integration.feature.feature.group JBoss by Red Hat
JBoss Tools Java Standard Tools 3.3.0.v20120504-2056-H66-Beta3 org.jboss.tools.jst.feature.feature.group null
JBoss Tools JDT Extensions 3.3.0.v20120510-2001-H58-Beta3 org.jboss.tools.common.jdt.feature.feature.group JBoss by Red Hat
JBoss Tools JSF 3.3.0.v20120504-0520-H88-Beta3 org.jboss.tools.jsf.feature.feature.group JBoss by Red Hat
JBoss Tools RichFaces 3.3.0.v20120504-0520-H88-Beta3 org.jboss.tools.richfaces.feature.feature.group JBoss by Red Hat
JBoss Tools Source Lookup 1.3.0.v20120514-1625-H96-Beta3 org.jboss.tools.maven.sourcelookup.feature.feature.group JBoss by Red Hat
JBoss Tools Usage Reporting 1.1.0.v20120504-2022-H52-Beta3 org.jboss.tools.usage.feature.feature.group JBoss by Red Hat
JBoss Tools Visual Page Editor 3.3.0.v20120504-2124-H75-Beta3 org.jboss.tools.vpe.feature.feature.group null
JBoss WebServices Tools 1.2.2.v20120514-1752-H106-Beta3 org.jboss.tools.ws.feature.feature.group JBoss by Red Hat
JBossAS Tools 2.3.0.v20120504-2054-H105-Beta3 org.jboss.ide.eclipse.as.feature.feature.group JBoss by Red Hat
JMX Console 1.2.0.v20120504-0232-H50-Beta3 org.jboss.tools.jmx.feature.feature.group JBoss by Red Hat
m2e - Maven Integration for Eclipse 1.0.200.20111228-1245 org.eclipse.m2e.feature.feature.group Eclipse.org - m2e
m2e - slf4j over logback logging (Optional) 1.0.200.20111228-1245 org.eclipse.m2e.logback.feature.feature.group Eclipse.org - m2e
Maven Integration for WTP 0.15.2.20120306-2040 org.maven.ide.eclipse.wtp.feature.feature.group JBoss by Red Hat
Maven Profiles Management 1.3.0.v20120514-1625-H96-Beta3 org.jboss.tools.maven.profiles.feature.feature.group JBoss by Red Hat
Project Examples 1.2.1.v20120504-1659-H91-Beta3 org.jboss.tools.project.examples.feature.feature.group JBoss by Red Hat
Seam 3 Tools 1.2.0.v20120504-0314-H63-Beta3 org.jboss.tools.cdi.seam.feature.feature.group JBoss by Red Hat