How to solve "[javac] error: invalid target release: 12.0.1" with command "ant run"

Question

如有错误，请检查图片

我附上我的build.xml

的编译代码

<target name="compile" depends="init, clean">
    <delete includeemptydirs="true" quiet="true">
        <fileset dir="${test.dest}" includes="**/*"/>
    </delete>
    <echo message="making directory..."/>
    <mkdir dir="${test.dest}"/>
    <echo message="classpath----: ${test.classpath}"/>
    <echo message="Compiling.."/>
    <javac includeantruntime="false" debug="true" destdir="${test.dest}" srcdir="${test.src}" target="12.0.1" classpath="${test.classpath}">
    </javac>
</target>

Answer 1

您应该只在 javac 任务的目标中指定 Java 规范版本（或主要版本）。所以，而不是 target="12.0.1"，它应该是 target="12".