问java中maven工程测试遇到问题？

Could not find goal '' in plugin org.apache.tomcat.maven:tomcat7-maven-plugin:2.2 among available goals exec-war-only, deploy-only, redeploy-only, help, shutdown, run-war-only, standalone-war-only, run, deploy, standalone-war, undeploy, run-war, redeploy, exec-war -> [Help 1]

org.apache.maven.plugin.MojoNotFoundException: Could not find goal '' in plugin org.apache.tomcat.maven:tomcat7-maven-plugin:2.2 among available goals exec-war-only, deploy-only, redeploy-only, help, shutdown, run-war-only, standalone-war-only, run, deploy, standalone-war, undeploy, run-war, redeploy, exec-wa

at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getMojoDescriptor(DefaultMavenPluginManager.java:292)

at org.apache.maven.plugin.DefaultBuildPluginManager.getMojoDescriptor(DefaultBuildPluginManager.java:244)

at org.apache.maven.lifecycle.internal.MojoDescriptorCreator.getMojoDescriptor(MojoDescriptorCreator.java:239)

at org.apache.maven.lifecycle.internal.DefaultLifecycleTaskSegmentCalculator.calculateTaskSegments(DefaultLifecycleTaskSegmentCalculator.java:103)

at org.apache.maven.lifecycle.internal.DefaultLifecycleTaskSegmentCalculator.calculateTaskSegments(DefaultLifecycleTaskSegmentCalculator.java:83)

at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:89)

at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:305)

at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:192)

at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:105)

at org.apache.maven.cli.MavenCli.execute(MavenCli.java:956)

at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:290)

at org.apache.maven.cli.MavenCli.main(MavenCli.java:194)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)

at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)

at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)

at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)

[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/MojoNotFoundException