I imported a new plugin from another at eclipse. QB server started successfully but when I access plugin setting page, I got a error log:

Caused by: com.pmease.quickbuild.RemotingException: Unable to find plugin with id 'com.******'.
Message: Unable to find plugin with id 'com.******'.

Root cause:

com.pmease.quickbuild.RemotingException: Unable to find plugin with id 'com.******'.
at com.pmease.quickbuild.pluginsupport.DefaultPluginManager.getPlugin(DefaultPluginManager.java:124)
at com.pmease.quickbuild.pluginsupport.DefaultPluginManager.getPlugin(DefaultPluginManager.java:25)
at com.pmease.quickbuild.grid.NodeServiceImpl.pluginSettingChanged(NodeServiceImpl.java:302)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.caucho.hessian.server.HessianSkeleton.invoke(HessianSkeleton.java:302)
at com.caucho.hessian.server.HessianSkeleton.invoke(HessianSkeleton.java:198)
at com.caucho.hessian.server.HessianServlet.invoke(HessianServlet.java:399)
at com.caucho.hessian.server.HessianServlet.service(HessianServlet.java:379)
at com.pmease.quickbuild.grid.GridServlet.service(GridServlet.java:36)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1669)
at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:239)
at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:215)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
at pl.samsung.srpol.dpi.filter.RemoteUserFilter.doFilter(RemoteUserFilter.java:47)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
at com.pmease.quickbuild.Quickbuild$AddCrossDomainFilter.doFilter(Quickbuild.java:1152)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
at com.pmease.quickbuild.Quickbuild$DisableTraceFilter.doFilter(Quickbuild.java:1177)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:221)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
at org.eclipse.jetty.server.Server.handle(Server.java:499)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:258)
at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
at java.lang.Thread.run(Thread.java:748)