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thats strange, netbeans adds the copylibs ant task usually to the libraries which enables building with ant outside NB. Never had any issues with this.

Posted by mbien on April 27, 2009 at 10:17 AM CEST #

Is your project using sharable libraries folder or not?

If it does not then check if libs.CopyLibs.classpath is defined in file {NetBeans-userdir}/build.properties. This file is autogenerated/updated after any change in IDE's Library Manager. I can imagine that a build from command line (after fresh checkout of the project from a VCS) will fail because project is not connected to IDE's userdir yet - that happens when you open it in the IDE and reference to above mentioned file is stored in private.properties as value of user.properties.file property.

If your project is using sharable libraries then situation is different and you should have a look at {project's-sharable-libraries-folder}/nblibraries.properties file which should contain the property. That property was added during project creation and because it is sort of internal jar required for building projects the property is rechecked during each project opening and recreated if necessary.

Posted by David Konecny on April 27, 2009 at 11:04 PM CEST #

If you want a truly interoperable project, i. e. one that can be checked out and built from the command-line or used by Eclipse guys, then you need to distribute the copylibs.jar with your project.

I put something like this in my build.xml:

<property name="libs.CopyLibs.classpath" value="bin/copylibstask.jar"/>

You won't then automatically get the newest version when you upgrade Netbeans, but you are not dependent on a local path anymore that might only exist on your machine.

Posted by 81.91.160.182 on April 29, 2009 at 05:40 PM CEST #

Hey,

thanks for this info, it happend to me while running check of updates in netbeans 6.7.

Posted by zeldi on August 13, 2009 at 11:52 AM CEST #

Fantastic.
I updated the build.xml file

<target name="-init-taskdefs">
<property name="libs.CopyLibs.classpath" value="bin/copylibstask.jar"/>
<fail unless="libs.CopyLibs.classpath">
..........

And it worked.

Posted by Saurabh Gupta on October 16, 2009 at 09:31 PM CEST #

Thank you very much, this fixed my problem.

Today I accidentally started Netbeans 6.7 twice - which may or may not be related to the cause of the problem.

This was the solution.

Posted by Martin Jenkins on February 02, 2010 at 11:39 AM CET #

Thanks a lot for this hint.
I was scratching my head looking for an answer.

cheers,

Posted by Joao Araujo on June 04, 2011 at 04:35 AM CEST #

yes after restarting Netbeans IDE the problem is resolved :)

Posted by Chanchal on August 07, 2011 at 07:46 AM CEST #

Thanks.it worked.

Posted by Amrita deb on September 22, 2011 at 09:44 AM CEST #

it worked adding
<property name="libs.CopyLibs.classpath" value="bin/copylibstask.jar"/>
in build-impl.xml

Posted by bs on January 27, 2012 at 04:59 PM CET #