Solo 启动报错求解

solo 启动映射方法的时候无法实现，返回 null，求有经验的大神帮忙提点下，谢谢了
代码异常如下：

[ERROR]-[2019-04-25 11:26:53]-[org.b3log.latke.servlet.DispatcherServlet:320]: Found lambda method reference impl method failed
java.lang.NoSuchMethodException: org.b3log.solo.SoloServletListener.lambda$0(org.b3log.latke.servlet.RequestContext)
	at java.lang.Class.getDeclaredMethod(Class.java:2130)
	at org.b3log.latke.servlet.DispatcherServlet$Router.handler(DispatcherServlet.java:318)
	at org.b3log.latke.servlet.DispatcherServlet$Router.get(DispatcherServlet.java:233)
	at org.b3log.latke.servlet.DispatcherServlet$Router.get(DispatcherServlet.java:229)
	at org.b3log.latke.servlet.DispatcherServlet.get(DispatcherServlet.java:156)
	at org.b3log.solo.SoloServletListener.routeConsoleProcessors(SoloServletListener.java:324)
	at org.b3log.solo.SoloServletListener.contextInitialized(SoloServletListener.java:89)
	at org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:952)
	at org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:558)
	at org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:917)
	at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:370)
	at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1497)
	at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1459)
	at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:847)
	at org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:287)
	at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:545)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:138)
	at org.eclipse.jetty.server.Server.start(Server.java:416)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:108)
	at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
	at org.eclipse.jetty.server.Server.doStart(Server.java:383)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
	at org.b3log.solo.Starter.main(Starter.java:177)