Re: [Jepp-users] no jep in java.library.path

[Nathan J. <ndj...@gm...>]

Hi,

The UnsatisifiedLinkError means that it can't find the native shared
library for Jep.  The name of that library depends on the operating system,
on Linux it is libjep.so, on OS X it is jep.so or libjep.jnilib, and on
Windows it's jep.dll.  If you don't have that anywhere, then you need to
build the library using setup.py.

Once you have the library and its location, there's a few different ways
you can tell Java/Jep where it's at.  On Linux you can set the
LD_LIBRARY_PATH environment variable to include the directory that has
libjep.so.  On Windows I think you set the PATH environment variable to
include that location.  You can also tell the JVM where to look for native
libraries with the java.library.path property.  See
http://examples.javacodegeeks.com/java-basics/java-library-path-what-is-it-and-how-to-use/

Hope that helps!

Nathan

On Tue, May 12, 2015 at 11:08 PM, Oleg Nikitin <ole...@gm...> wrote:

> Hello!
>
> I'm trying to run sample jepp code:
>
> package jepexample;
>
> import java.util.logging.Level;
> import java.util.logging.Logger;
> import jep.Jep;
> import jep.JepException;
>
> /**
> *
> * @author sganapat
> */
> public class Main {
> private Jep objJep;
>
>
> Main() {
> try {
> objJep = new Jep();
> } catch (JepException ex) {
> Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
> }
> }
> /**
> * @param args the command line arguments
> */
> public static void main(String[] args) {
>
> try {
>
> Main main = new Main();
>
> main.executeCommand();
>
> main.executeScript();
> } catch (JepException ex) {
> Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
> }
>
> }
>
> /**
> * Executes Python Commands
> * @throws JepException
> */
> private void executeCommand() throws JepException {
>
> objJep.eval("print 'Hello Java'");
>
> }
>
> /**
> * Executes Python Script
> */
> private void executeScript() throws JepException {
>
>
> objJep.runScript("/home/boka/NetBeansProjects/HelloWorld/src/helloworld.py");
>
> }
>
> }
>
> I am importing jep.jar to the project libraries, but it still gives me an
> error:
>
> Exception in thread "main" java.lang.UnsatisfiedLinkError: no jep in
> java.library.path
>
> Can somebody help me please? I'm struggling with a problem for two days
> with no solution.
>
> Oleg.
>
>
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