title: CPLEX library path error in eclipse
body: <p>I'm using eclipse for java coding</p>
  
  <p>I completed the code and it worked well on CPLEX library 12.6(I added library in properties> libraries > add external jars > cplex.jar)</p>
  
  <p>I wanted to change the library of CPLEX 12.7, so I removed previous one and added cplex.jar of CPLEX 12.7, but suddenly I got error message.</p>
  
  <p>It says as below;</p>
  
  <pre><code>java.lang.UnsatisfiedLinkError: no cplex1270 in java.library.path
  java.library.path must point to the directory containing the CPLEX shared 
  library
  try invoking java with java -Djava.library.path=...
  Exception in thread "main" java.lang.UnsatisfiedLinkError: 
  ilog.cplex.Cplex.CPXopenCPLEX([I)J
      at ilog.cplex.Cplex.CPXopenCPLEX(Native Method)
      at ilog.cplex.CplexI.init(CplexI.java:6736)
      at ilog.cplex.CplexI.&lt;init&gt;(CplexI.java:746)
      at ilog.cplex.IloCplex.&lt;init&gt;(IloCplex.java:10303)
      at ilog.cplex.IloCplex.&lt;init&gt;(IloCplex.java:10318)
      at ColumnGen$MasterProblem.createModel(ColumnGen.java:222)
      at ColumnGen$MasterProblem.&lt;init&gt;(ColumnGen.java:196)
      at ColumnGen.&lt;init&gt;(ColumnGen.java:648)
      at main_BnP_MU.&lt;clinit&gt;(main_BnP_MU.java:8)
  </code></pre>
  
  <p>How can I overcome this?</p>