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Editorial Team
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Asked: 2026-06-12T00:17:13+00:00

Hi I cloned the repo using git clone https://code.google.com/p/objectify-appengine/ When I run ant jar

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Hi I cloned the repo using git clone https://code.google.com/p/objectify-appengine/
When I run ant jar I get the following error – 

D:\gae\objectify4\objectify-appengine\build.xml:76: Problem: failed to create task or type antlib:org.apache.ivy.ant:cachepath
Cause: The name is undefined.
Action: Check the spelling.
Action: Check that any custom tasks/types have been declared.
Action: Check that any <presetdef>/<macrodef> declarations have taken place.
No types or tasks have been defined in this namespace yet

This appears to be an antlib declaration.
Action: Check that the implementing library exists in one of:
        -E:\Softwares\apache-ant-1.8.4\lib
        -C:\Users\shwetanka\.ant\lib
        -a directory added on the command line with the -lib argument

Need help with this.

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1 Answer

  1. Editorial Team

    EDIT: Ignore this answer, the build is now Gradle-based. Install Gradle and run “gradle build”. The wiki has been updated: https://code.google.com/p/objectify-appengine/wiki/ContributingToObjectify

    Wow, quick timing! I switched the build to Ivy yesterday, but haven’t updated the docs yet.

    Download Ivy and copy the ivy jar to ~/.ant/lib. Then you should be able to build. There are no other config requirements (the edit-this-to-build.properties has been deleted).

    If you want to work with Objectify in Eclipse, download IvyIDE.

    There will be more changes to the build system in the next couple days as I figure out how to get Ivy to sign and publish artifacts to Maven Central.

    BTW: For a faster response, post to the Objectify Google Group.

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