运行 ant build.xml 时出错

Question

您好，下面是我从命令提示符运行代码时的代码，因为 ant run iam 得到错误为

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

你在目标中有目标，这是 Ant 不喜欢的，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，并且您可以在依赖项中具有依赖项，就像上面的 run（一个在 run 中）一样。删除最外面的运行目标及其相应的结束标记，使其看起来像：

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

要运行你的运行目标，你可以发出ant run（构建文件名是可选的，假设根据你的错误你在build.xml中有这些）