title: Class path contains multiple SLF4J bindings
body: <p>I tried to debug my project but got this </p>
  
  <pre><code>SLF4J: Class path contains multiple SLF4J bindings.
  SLF4J: Found binding in [jar:file:/usr/local/storm/lib/logback-classic-1.0.13.jar!/org/slf4j/impl/StaticLoggerBinder.class]
  SLF4J: Found binding in [jar:file:/home/user/.m2/repository/ch/qos/logback/logback-classic/1.0.13/logback-classic-1.0.13.jar!/org/slf4j/impl/StaticLoggerBinder.class]
  </code></pre>
  
  <p>what should i do ? </p>
  
  <p>i haven't any dependency for SLF4J in POM just this </p>
  
  <pre><code>&lt;dependency&gt;
          &lt;groupId&gt;org.apache.storm&lt;/groupId&gt;
          &lt;artifactId&gt;storm-core&lt;/artifactId&gt;
          &lt;version&gt;0.9.6&lt;/version&gt;
          &lt;scope&gt;provided&lt;/scope&gt;
  &lt;/dependency&gt;
  </code></pre>
  
  <p>i tried to use the solutions i found in similar posts but didn't solve it !  like </p>
  
  <pre><code>&lt;exclusions&gt;
              &lt;exclusion&gt;
                  &lt;groupId&gt;org.slf4j&lt;/groupId&gt;
                  &lt;artifactId&gt;log4j-over-slf4j&lt;/artifactId&gt;
              &lt;/exclusion&gt;
              &lt;exclusion&gt;
                  &lt;groupId&gt;org.slf4j&lt;/groupId&gt;
                  &lt;artifactId&gt;slf4j-api&lt;/artifactId&gt;
              &lt;/exclusion&gt;
              &lt;exclusion&gt;
                  &lt;groupId&gt;logback-classic&lt;/groupId&gt;
                  &lt;artifactId&gt;ch.qos.logback&lt;/artifactId&gt;
              &lt;/exclusion&gt;
          &lt;/exclusions&gt;
  </code></pre>
  
  <p>I tried to replace <code>provided</code> to <code>compile</code> but didn't solve it too . </p>
  
  <p>I got this with using  <code>mvn dependency:tree</code></p>
  
  <pre><code> org.slf4j:log4j-over-slf4j:jar:1.6.6:provided 
   org.slf4j:slf4j-api:jar:1.7.5:compile
  </code></pre>