Maven Plugin Package o11n-package: ImportPackageMojo.importSinglePackage() throw an error said java.lang.NoClassDefFoundError: org/slf4j/event/LoggingEvent

I'm trying to sync a package from a vRO which version is 7.0.1 var the plugin package maven-o11n-package-plugin. and I got an error which locates on ImportPackageMojo.importSinglePackage().any idea on this?

org.apache.maven.plugin.MojoExecutionException: Unable to import package [package.used.for.sync], from server '[**************************************]'

at com.vmware.o11n.mojo.pkg.ImportPackageMojo.importSinglePackage(ImportPackageMojo.java:194)

at com.vmware.o11n.mojo.pkg.ImportPackageMojo.execute(ImportPackageMojo.java:144)

at com.emc.ehc.service.impl.RepositoryServiceImpl.syncUpPackage(RepositoryServiceImpl.java:100)

at com.ehc.emc.review.tool.PackageTool.syncPackage(PackageTool.java:38)

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 com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)

at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$VoidOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:167)

at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)

at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302)

at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)

at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)

at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)

at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)

at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1542)

at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1473)

at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419)

at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409)

at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:409)

at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:558)

at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:733)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)

at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)

at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)

at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:528)

at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1099)

at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:670)

at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2508)

at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2497)

at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

at java.lang.Thread.run(Unknown Source)

Caused by: org.springframework.remoting.RemoteAccessException: Could not deserialize result from HTTP invoker remote service [https://10.103.201.81:8281/vco/webremoting/vcofactory.service]; nested exception is java.lang.NoClassDefFoundError: org/slf4j/event/LoggingEvent

at org.springframework.remoting.httpinvoker.HttpInvokerClientInterceptor.convertHttpInvokerAccessException(HttpInvokerClientInterceptor.java:212)

at org.springframework.remoting.httpinvoker.HttpInvokerClientInterceptor.invoke(HttpInvokerClientInterceptor.java:147)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)

at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)

at com.sun.proxy.$Proxy54.invokeOperation(Unknown Source)

at com.vmware.o11n.model.support.proxy.RemoteHttpVSOFactoryInvocationHandler.doInvoke(RemoteHttpVSOFactoryInvocationHandler.java:186)

at com.vmware.o11n.model.support.proxy.RemoteHttpVSOFactoryInvocationHandler.invoke(RemoteHttpVSOFactoryInvocationHandler.java:138)

at com.sun.proxy.$Proxy55.getPackageContent(Unknown Source)

at ch.dunes.model.client.VSOFactoryClient.getPackageContent(VSOFactoryClient.java:2170)

at ch.dunes.model.pkg.Package.loadContent(Package.java:234)

at ch.dunes.model.pkg.impexp.LocalPackageFileManager.writePackage(LocalPackageFileManager.java:148)

at com.vmware.o11n.mojo.pkg.ImportPackageMojo.importSinglePackage(ImportPackageMojo.java:189)

... 44 more

Caused by: java.lang.NoClassDefFoundError: org/slf4j/event/LoggingEvent

at java.lang.Class.getDeclaredMethods0(Native Method)

at java.lang.Class.privateGetDeclaredMethods(Unknown Source)

at java.lang.Class.getDeclaredMethod(Unknown Source)

at java.io.ObjectStreamClass.getPrivateMethod(Unknown Source)

at java.io.ObjectStreamClass.access$1700(Unknown Source)

at java.io.ObjectStreamClass$2.run(Unknown Source)

at java.security.AccessController.doPrivileged(Native Method)

at java.io.ObjectStreamClass.<init>(Unknown Source)

at java.io.ObjectStreamClass.lookup(Unknown Source)