sl4j error

[cscvenkatmadurai]

Hi everyone
I am trying to compile word2vecExample.java file i got an error as stated below.

SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Exception in thread "main" java.lang.NoClassDefFoundError: org/slf4j/impl/StaticLoggerBinder
at org.slf4j.LoggerFactory.getSingleton(LoggerFactory.java:223)
at org.slf4j.LoggerFactory.bind(LoggerFactory.java:120)
at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:111)
at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:269)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:242)
at org.apache.thrift.transport.TIOStreamTransport.(TIOStreamTransport.java:38)
at org.apache.thrift.TSerializer.(TSerializer.java:45)
at com.medallia.word2vec.util.ThriftUtils.serializeJson(ThriftUtils.java:16)
at com.medallia.word2vec.Word2VecExamples.demoWord(Word2VecExamples.java:73)
at com.medallia.word2vec.Word2VecExamples.main(Word2VecExamples.java:36)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)
Caused by: java.lang.ClassNotFoundException: org.slf4j.impl.StaticLoggerBinder
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 15 more

I downloaded slf4j-simple 1.7 jar from below link and added dependency in gradle file
http://mvnrepository.com/artifact/org.slf4j/slf4j-simple/1.7.13
Graddle file-
compile 'org.slf4j:slf4j-simple:1.7.13'

I recoompiled word2VecExample.java i got another error as described below.what is the way resolve the error

SLF4J: The requested version 1.6.99 by your slf4j binding is not compatible with [1.5.5, 1.5.6, 1.5.7, 1.5.8]
SLF4J: See http://www.slf4j.org/codes.html#version_mismatch for further details.