xml - 运行ant build.xml时出错

Question

嗨，下面是我的代码，当我从命令提示符下运行代码作为 Ant 运行iam时，获取错误为

ERROR:
F:\xxx\build.xml:29: Problem: failed to create task or type target
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.

这是我的代码:

    <target name="checkout" description="checkout the code from Perforce">
        <exec executable="cmd">
            <arg value="/c"/>
            <arg value="p4 -u -p sync"/>
            <arg value="-p"/>
        </exec>
    </target>
    <target name="getlatestcode" description="checkout and get latest code from perforce">
        <exec executable="cmd">
            <arg value="/c"/>
            <arg value="p4"/>
            <arg value="-p"/>
        </exec>
    </target>
    <target name="cordovabuild" description="Getting the code and build the project">
        <exec executable="cmd">
            <arg value="/c"/>
            <arg value="p4"/>
            <arg value="-p"/>
        </exec>
    </target>

    <target name="run">
            <target name="checkout"/>
            <target name="getlatestcode" depends="checkout"/>
            <target name="cordovabuild" depends="getlatestcode"/>
            <target name="run" depends="cordovabuild,getlatestcode,checkout"/>
    </target>

Answer 1

您的目标内有目标，这是 Ant 不喜欢的目标，如下所示。

<target name="run">
    <target name="checkout"/>
    <target name="getlatestcode" depends="checkout"/>
    <target name="cordovabuild" depends="getlatestcode"/>
    <target name="run" depends="cordovabuild,getlatestcode,checkout"/>
</target>

您应该有一个独立的目标，并且可以像上面的运行(在运行中一个)那样依赖于依赖项。删除运行次数最多的目标及其对应的结束标记，因此它应如下所示:

<target name="checkout"/>
<target name="getlatestcode" depends="checkout"/>
<target name="cordovabuild" depends="getlatestcode"/>
<target name="run" depends="cordovabuild,getlatestcode,checkout"/>

而要运行您的运行目标，您只需发出 ant run(构建文件名为可选，假设根据您的错误在build.xml中包含这些文件)