Ant Build Failed in Eclipse

Question

I was building an jar file of my project using ANT after searching in Google found how do do it i referred this ink. Below is my build.xml file

<?xml version="1.0" ?> 
<project name="ExcelData" default="compress">

    <target name="init">
        <mkdir dir="build/classes" />
        <mkdir dir="dist" />
    </target>

    <target name="compile" depends="init">
        <javac srcdir="src" destdir="build/classes" />
    </target>

    <target name="compress" depends="compile">
            <jar destfile="dist/ExcelData.jar" basedir="build/classes" />
    </target>

    <target name="execute" depends="compile">
        <java classname="com.spt.excel.data.ExcelData" classpath="build/classes" />
    </target>

    <target name="clean">
        <delete dir="build" />
        <delete dir="dist" />
    </target>

</project>

but the problem is the ANT building is failing. But i am getting errors as

D:\Eclipse\workspace\ExcelData\src\com\spt\excel\data\ExcelData.java:24: error: package org.slf4j does not exist`

And referred this link to set tools.jar.

Can Anyone tell me where i am going wrong. Thank You in advance.

are you using Eclipse? – Nikolay Kuznetsov Feb 07 '13 at 05:48 — Nikolay Kuznetsov, Feb 07 '13 at 05:48

Sergii Zagriichuk · Accepted Answer · 2013-02-07T17:08:33.563

5

you have no include libraries to your ant file, I mean classpath, just add all libs that your eclipse project contains to ant file and all will work, and please read original tutorial like this one

like that

<javac srcdir="${src.dir}" destdir="${classes.dir}">
    <classpath>
        <pathelement location="${lib.dir}/lib1.jar"/>
        <pathelement location="${lib.dir}/lib2.jar"/>
    </classpath>
</javac>

for libs

<path id="mylibs">
    <fileset dir="${lib.dir}" includes="**/*.jar"/>
</path>

<javac srcdir="${src.dir}" destdir="${build.dir}" classpathref="mylibs" debug="on"/>

add properties lib.dir

 <property name="lib.dir"  location="{here is path to your libraries}"/>

edited Feb 07 '13 at 17:08

answered Feb 07 '13 at 05:53

Sergii Zagriichuk

5,389
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Hi Sergii what if we many libraries do we need to include all of those – Rithesh Feb 07 '13 at 06:01
@Rithesh update my answer, BTW, try to read docs before write something. – Sergii Zagriichuk Feb 07 '13 at 06:07
if we give lib.dir,src.dir its giving error as D:\Eclipse\workspace\ExcelData\${lib.dir} not found. – Rithesh Feb 07 '13 at 09:52

score 2 · Answer 2 · edited May 23 '17 at 11:48

2

For Eclipse I recommend following:

Right click your project -> Export -> Runnable Jar file 

Pick launch configuration, destination, extract required libraries into JAR, tick Save as ANT script

Finish.

Eventually you would have Jar file generated together with reusable Ant script.

Then you analyze your Ant script.

Difference between extracting and packaging libraries into a jar file

edited May 23 '17 at 11:48

Community

1
1

answered Feb 07 '13 at 05:54

Nikolay Kuznetsov

9,467
12
55
101

hi Nikolay i wanted, by using that build.xml one – Rithesh Feb 07 '13 at 05:59
Creating ant files from IDE like extracting and so on, do not provide knowledge how to create real build file, as result questions like that, I think, just for author, will be perfect to read docs from ant.apache.com and create MANUALLY build file. But your point is good, for solid developers :). Cheers! – Sergii Zagriichuk Feb 07 '13 at 06:00
@SergiiZagriichuk, if the OP has no experience in Ant, then generating valid Ant script first is the best. And then reading docs for each generated ant task. I personally did it this way. It is time saving :) – Nikolay Kuznetsov Feb 07 '13 at 06:06
@NikolayKuznetsov Yep, I am agree, it's saving time – Sergii Zagriichuk Feb 07 '13 at 06:08

Ant Build Failed in Eclipse

2 Answers2