Ant 目标失败：Antlib 或 Ivy 问题？ [复制]

可能的重复：
Ivy 无法解决依赖关系，无法找到原因 https://stackoverflow.com/questions/9853851/ivy-fails-to-resolve-a-dependancy-unable-to-find-cause

我正在尝试运行以下构建任务（initIvy):

<?xml version="1.0" encoding="UTF-8"?>
<project name="myproject-build" default="package" basedir=".." xmlns:ivy="antlib:org.apache.ivy.ant">
    <property file="build/build.properties"/>
    <property environment="env"/>

    <!-- Ant library path, including all of its plugins. -->
    <path id="ant.lib.path">
        <fileset dir="${env.ANT_HOME}/lib" includes="*.jar"/>
    </path>

    <!-- CONFIGURE IVY -->
        <taskdef resource="org/apache/ivy/ant/antlib.xml"
            uri="antlib:org.apache.ivy.ant" classpathref="ant.lib.path"/>

    <!-- Use Ivy tasks to resolve dependencies into the local Ivy cache. -->
    <target name="initIvy">
        <!-- Initialize Ivy and connect to host repository. -->
        <echo message="Initializing Apache Ivy and connecting to the host repository."/>
        <ivy:settings url="${ivy.std.repo.settings.url}" realm="${ivy.std.repo.realm}" username="${ivy.std.repo.username}" passwd="${ivy.std.repo.password}"/>

        <!-- Clear/flush the Ivy cache. -->
        <echo message="Cleaning the local Ivy cache for the current build."/>
        <ivy:cleancache/>
    </target>

    <!-- Rest of buildfile omitted for brevity. -->

</project>

当我跑步时ant -buildfile build.xml initIvy我得到以下输出：

Buildfile: /<path-to-my-project>/build/build.xml
    [taskdef] Could not load definitions from resource org/apache/ivy/ant/antlib.xml. It could not be found.

initIvy:
    [echo] Initializing Apache Ivy and connecting to the host repository.

BUILD FAILED
/<path-to-my-project>/build/build.xml:81: Problem: failed to create task or type antlib:org.apache.ivy.ant:settings
    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:
    -/<path-to-my-ANT_HOME>/lib
    -/home/myUser/.ant/lib
    -a directory added on the command line with the -lib argument

当我转到 ${ANT_HOME}/lib 时，我没有看到任何标记为“antlib*.jar”的 JAR。

So I'm guessing我下载了一个不包含 Antlib 的 Ant 版本，现在我使用的是 Ivy（它使用 Antlib），构建令人窒息？

如果这是 Antlib 问题，那么我相信我想要可用的发行版之一here http://ant.apache.org/antlibs/bindownload.cgi。如果是这样，有人可以确认我应该使用哪一个（仅包含 Antlib 而不是其他任何内容），并确认安装它的过程；即，是否就像将正确的 JAR 放入 ${ANT_HOME}/lib 中一样简单？ ETC。

如果这是常春藤问题，那么有人可以指出我正确的方向，说明可能发生的情况吗？

如果这既不是 Antlib 也不是 Ivy，则与上面的问题同上。提前致谢！

我认为您可能缺少 Apache IVY 库。从这里下载 -阿帕奇常春藤 http://ant.apache.org/ivy/download.cgi将 jar 复制到 ant lib 目录中。

例如（根据需要更改版本号）：

1. 下载并安装 Ant（例如C:\Apps\Tools\apache-ant-1.9.7).
2. 下载并解压 Ivy（例如，C:\Users\UserName\Downloads\apache-ivy-2.4.0)
3. Copy C:\Users\UserName\Downloads\apache-ivy-2.4.0\ivy-2.4.0.jar into C:\Apps\Tools\apache-ant-1.9.7\lib.

Ant 配置为使用 Ivy。