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我正在尝试使用 Ant build 从 IBM RSA IDE 中运行 Ant 任务...

我收到以下错误消息：

BUILD FAILED
build.xml:21: Could
 not create task or type of type: getProjectData.

Ant could not find the task or a class this task relies upon.

This is common and has a number of causes; the usual
solutions are to read the manual pages then download and
install needed JAR files, or fix the build file:
 - You have misspelt 'getProjectData'.
   Fix: check your spelling.
 - The task needs an external JAR file to execute
     and this is not found at the right place in the classpath.
   Fix: check the documentation for dependencies.
   Fix: declare the task.
 - The task is an Ant optional task and the JAR file and/or libraries
     implementing the functionality were not found at the time you
     yourself built your installation of Ant from the Ant sources.
   Fix: Look in the ANT_HOME/lib for the 'ant-' JAR corresponding to the
     task and make sure it contains more than merely a META-INF/MANIFEST.MF.
     If all it contains is the manifest, then rebuild Ant with the needed
     libraries present in ${ant.home}/lib/optional/ , or alternatively,
     download a pre-built release version from apache.org
 - The build file was written for a later version of Ant
   Fix: upgrade to at least the latest release version of Ant
 - The task is not an Ant core or optional task
     and needs to be declared using <taskdef>.
 - You are attempting to use a task defined using
    <presetdef> or <macrodef> but have spelt wrong or not
   defined it at the point of use

Remember that for JAR files to be visible to Ant tasks implemented
in ANT_HOME/lib, the files must be in the same directory or on the
classpath

Please neither file bug reports on this problem, nor email the
Ant mailing lists, until all of these causes have been explored,
as this is not an Ant bug.

这是 Ant 构建文件：

<!--  Get property locationName. -->
<target name="config">
    <echo message="${ear.project.name}" />
    <getProjectData projectName="${ear.project.name}" />
</target>

我不太确定问题出在哪里，因为错误消息似乎没有帮助。有什么建议么？

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1 回答 1

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我相信getProjectData是 IBM 对 ant 的扩展。和你一样，我也有类似的错误，但是在确保启用了Run in the same JRE as the workspace选项后我能够让它工作（你可以通过右键单击构建文件、run-as、Ant Build 来找到它...，然后选择 JRE 选项卡上的选项）。

我在IBM 信息中心发现了解决方案：

Run in the same JRE as the workspace选项使工作台的类路径能够访问执行特定于工作台的操作的其他 Ant 任务，例如projectImport、 projectBuild、workspaceBuild、ejbDeploy或earExport。如果您的 Ant 构建脚本使用任何执行工作台操作的 Ant 任务，请确认您选择了Run in the same JRE as the workspace 选项；否则您可能会在控制台视图中收到以下错误消息：

Problem: failed to create task or type <Ant task> Cause:
The name is undefined.

我使用的构建文件如下所示：

<?xml version="1.0"?>
<project name="Test" default="config" basedir=".">
    <target name="config">
        <getProjectData Basedir="${basedir}" />
        <echo message="getProjectData: projectName=${projectName}
            nature=${natureName}
            workspace=${workspaceName}
            basedir=${basedir}" />
    </target>
</project>

并输出：

Buildfile: C:\DATA\java\workspace\test-java\build.xml

config:
[getProjectData] Setting projectName=test-java
[getProjectData] Retrieved following Project Data :
[getProjectData] workspaceName=C:\DATA\java\workspace
[getProjectData] natureName=Java
        [echo] getProjectData: projectName=test-java
                               nature=Java
                               workspace=C:\DATA\java\workspace
                               basedir=C:\DATA\java\workspace\test-java
BUILD SUCCESSFUL
Total time: 78 milliseconds
于 2011-12-02T03:12:14.167 回答