Vineet Manohar's blog

Today I started getting the following error with the SNAPSHOT version of the Selenium Maven plugin.

[INFO]    task-segment: [compile]
[INFO] ----------------------------------------------------------------------------
Downloading: http://snapshots.repository.codehaus.org//org/mortbay/jetty/maven-jetty-plugin/6.1.16/maven-jetty-plugin-6.1.16.pom
[INFO] Ignoring available plugin update: 1.0-20090626.153339-8 as it requires Maven version 2.0.9
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] The plugin 'org.codehaus.mojo:selenium-maven-plugin' does not exist or no valid version could be found
[INFO] ------------------------------------------------------------------------
[INFO] Trace
org.apache.maven.lifecycle.LifecycleExecutionException: The plugin 'org.codehaus.mojo:selenium-maven-plugin' does not exist or no valid version could be found
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.verifyPlugin(DefaultLifecycleExecutor.java:1286)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.bindPluginToLifecycle(DefaultLifecycleExecutor.java:1221)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.constructLifecycleMappings(DefaultLifecycleExecutor.java:987)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:458)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:311)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:278)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:143)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:334)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:125)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:272)
        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:585)
        at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
        at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
        at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
        at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
Caused by: org.apache.maven.plugin.version.PluginVersionNotFoundException: The plugin 'org.codehaus.mojo:selenium-maven-plugin' does not exist or no valid version could be found
        at org.apache.maven.plugin.version.DefaultPluginVersionManager.resolvePluginVersion(DefaultPluginVersionManager.java:228)
        at org.apache.maven.plugin.version.DefaultPluginVersionManager.resolvePluginVersion(DefaultPluginVersionManager.java:90)
        at org.apache.maven.plugin.DefaultPluginManager.verifyPlugin(DefaultPluginManager.java:166)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.verifyPlugin(DefaultLifecycleExecutor.java:1257)
        ... 17 more

My pom.xml selenium maven plugin configuration section is as follows:

 <plugin>
  <groupId>org.codehaus.mojo</groupId>
  <artifactId>selenium-maven-plugin</artifactId>
 </plugin>
...
<pluginRepository>
<id>codehaus snapshot repository</id>
 <url>http://snapshots.repository.codehaus.org/</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots><enabled>true</enabled></snapshots>
</pluginRepository>

Solution

The reason for this error is that the newest snapshot of selenium-maven-plugin requires maven version 2.0.9. However, the version on my machine was 2.0.6. After upgrading maven to the latest version the error went away.

Related posts:

1. 3 ways to run Java main from Maven
2. How to auto-generate Maven plugin documentation
3. Tweet your builds with Maven Twitter Plugin
4. JAXB code snippets for beginners
5. Maven Cargo JBoss