neural network - JNA class not Found Error using FANNJ for Ubuntu in Eclipse -
i'm trying use fannj in eclipse (on ubuntu), trying create toy program keeps giving error shown below.
code:
package mypackage; import com.googlecode.fannj.fann; public class mainclass { public static void man(string[] args) { system.out.println("1"); fann fann = new fann("/home/sahil/desktop/intern/java/eclipse/workspace/usingfann/ann_net_output1.net"); } } error:
exception in thread "main" java.lang.noclassdeffounderror: com/sun/jna/platform @ com.googlecode.fannj.fann.<clinit>(fann.java:51) @ mypackage.mainclass.main(mainclass.java:9) caused by: java.lang.classnotfoundexception: com.sun.jna.platform @ java.net.urlclassloader$1.run(urlclassloader.java:366) @ java.net.urlclassloader$1.run(urlclassloader.java:355) @ java.security.accesscontroller.doprivileged(native method) @ java.net.urlclassloader.findclass(urlclassloader.java:354) @ java.lang.classloader.loadclass(classloader.java:425) @ sun.misc.launcher$appclassloader.loadclass(launcher.java:308) @ java.lang.classloader.loadclass(classloader.java:358)
could works fannj on ubuntu please explain why error comes up?
you have download missing library "jna". after must point in eclipse (using properties of project > java build path > libraries, , adding jar (you can browse on "add external jars...").
a way dependancies project "maven". can create "pom.xml" file on root folder of project. write down:
<project xmlns="http://maven.apache.org/pom/4.0.0" xmlns:xsi="http://www.w3.org/2001/xmlschema-instance" xsi:schemalocation="http://maven.apache.org/pom/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelversion>4.0.0</modelversion> <groupid>com.something</groupid> <artifactid>myproject</artifactid> <version>0.0.1-snapshot</version> <name>myproject</name> <description>myproject</description> <dependencies> <dependency> <groupid>org.apache.commons</groupid> <artifactid>commons-lang3</artifactid> <version>3.3.2</version> </dependency> <!-- https://mvnrepository.com/artifact/com.googlecode.fannj/fannj --> <dependency> <groupid>com.googlecode.fannj</groupid> <artifactid>fannj</artifactid> <version>0.6</version> </dependency> </dependencies> </project> and finally, on commmand line type # mvn install, download dependancies , default put libraries in "homefolder/.m2". so, browse jna library, gonna find in folder this: "~/.m2/repository/net/java/dev/jna/jna/3.2.7". if project uses other libraries besides fannj, can add in pom file together.
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