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From Lance Weber <>
Subject Re: Problem using Ant+Ivy builds from within Eclipse
Date Mon, 19 Nov 2007 22:53:11 GMT

Thanks for the fast response!

I do have it configured to use the external ANT_HOME, and I went and
double-checked all the settings under both Preferences and the project's ant
builder. I still get the same error...

jonathan doklovic wrote:
> Are you using the eclipse version of ant or your ant home?
> I'd try going into eclipse: Window>Preferences>Ant>Runtime, click on the
> Ant Home... button and point it to your external ant home.
> This should make eclipse use your installed ant (and it's lib folder)
> instead of it's built-in version of ant.
> - Jonathan
> On Mon, 2007-11-19 at 14:37 -0800, Lance Weber wrote:
>> Hey folks, I'm trying to setup an Eclipse project to use an ant+ivy
>> script as
>> a builder. The script works fine outside of Eclipse, but as a builder, I
>> keep getting the following error when ant tries to run the <ivy:settings
>> id="ivy.instance"/> task:
>> jar:file:C:/work/tools/apache-ant-1.7.0/lib/ivy-2.0.0-alpha2-incubating.jar!/org/apache/ivy/ant/antlib.xml:21:
>> typedef A class needed by class org.apache.ivy.ant.IvyAntSettings cannot
>> be
>> found: org/apache/tools/ant/types/DataType
>> I'm using Eclipse 3.3, JDK6, Ant 1.7, Ivy 2.0alpha2, and IvyDE 1.3
>> Any help/pointers would be greatly appreciated! 

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