Jfinal-weixin Demo在本地运行时报错，求大侠相助?报错

从Jfinal官网上下载jfinal-weixin-1.2-demo.zip解压后，导入工程，在本地运行时报错，按照网上的解决方案，使用slf4j最新版也不行，降低运行环境也不行，试了不知多少次，还是未能解决，恳请哪位大侠相助。

错误信息如下：

Starting JFinal 1.9

Starting scanner at interval of 5 seconds.
Starting web server on port: 80
Exception in thread "main" java.lang.NoSuchMethodError: org.slf4j.spi.LocationAwareLogger.log(Lorg/slf4j/Marker;Ljava/lang/String;ILjava/lang/String;[Ljava/lang/Object;Ljava/lang/Throwable;)V
at org.eclipse.jetty.util.log.JettyAwareLogger.log(JettyAwareLogger.java:607)
at org.eclipse.jetty.util.log.JettyAwareLogger.warn(JettyAwareLogger.java:431)
at org.eclipse.jetty.util.log.Slf4jLog.warn(Slf4jLog.java:69)
at org.eclipse.jetty.util.component.AbstractLifeCycle.setFailed(AbstractLifeCycle.java:204)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:74)
at com.jfinal.server.JettyServer.doStart(JettyServer.java:120)
at com.jfinal.server.JettyServer.start(JettyServer.java:64)
at com.jfinal.core.JFinal.start(JFinal.java:159)

at com.jfinal.weixin.demo.WeixinConfig.main(WeixinConfig.java:61)