title: XGBoost Java Implementation : java.lang.UnsatisfiedLinkError when using DMatrix from XGBoost Package
body: <p>I'm using eclipse luna with maven plugin in Windows 8.1. I've already put xgboost4j.dll (renaming libxgboost.dll which is produced from running "make" in xgboost folder) in xgboost4j/src/main/resources/lib/xgboost4j.dll by running create_Jni.bat. When I'm running BasicWalkThrough.java in example package, it output the following error</p>
  
  <pre><code>Exception in thread "main" java.lang.UnsatisfiedLinkError:ml.dmlc.xgboost4j.java.XGBoostJNI.XGDMatrixCreateFromFile(Ljava/lang/String;I[J)I
      at ml.dmlc.xgboost4j.java.XGBoostJNI.XGDMatrixCreateFromFile(Native Method)
      at ml.dmlc.xgboost4j.java.DMatrix.(DMatrix.java:83)
      at ml.dmlc.xgboost4j.java.example.BasicWalkThrough.main(BasicWalkThrough.java:52)
  </code></pre>
  
  <p>Please let me know what am I doing wrong.</p>
  
  <p>Thanks in advance.</p>