ant打包报错 JRE version less than 1.8 is not suppored

ant 打包错误如下 :

 解决方案 :

使用 apache-ant-1.9.15 及之下版本的ant 

编辑工作空间下文件    .metadata/.plugins/org.eclipse.debug.core/.launches/项目名 build.xml.launch , 添加红色部分代码

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<launchConfiguration type="org.eclipse.ant.AntLaunchConfigurationType">
<booleanAttribute key="org.eclipse.ant.ui.DEFAULT_VM_INSTALL" value="true"/>
<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_PATHS">
<listEntry value="/项目名/build.xml"/>
</listAttribute>
<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_TYPES">
<listEntry value="1"/>
</listAttribute>
<listAttribute key="org.eclipse.jdt.launching.CLASSPATH">
<listEntry value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&#13;&#10;&lt;runtimeClasspathEntry containerPath=&quot;org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/jdk1.6.0_39&quot; path=&quot;1&quot; type=&quot;4&quot;/&gt;&#13;&#10;"/>
<listEntry value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&#13;&#10;&lt;runtimeClasspathEntry id=&quot;org.eclipse.ant.ui.classpathentry.antHome&quot;&gt;&#13;&#10;&lt;memento antHome=&quot;D:/apache-ant-1.9.15&quot;/&gt;&#13;&#10;&lt;/runtimeClasspathEntry&gt;&#13;&#10;"/>
<listEntry value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&#13;&#10;&lt;runtimeClasspathEntry id=&quot;org.eclipse.ant.ui.classpathentry.extraClasspathEntries&quot;&gt;&#13;&#10;&lt;memento/&gt;&#13;&#10;&lt;/runtimeClasspathEntry&gt;&#13;&#10;"/>
</listAttribute>
<stringAttribute key="org.eclipse.jdt.launching.CLASSPATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
<booleanAttribute key="org.eclipse.jdt.launching.DEFAULT_CLASSPATH" value="false"/>
<stringAttribute key="org.eclipse.jdt.launching.JRE_CONTAINER" value="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/jdk1.6.0_39"/>
<stringAttribute key="org.eclipse.jdt.launching.MAIN_TYPE" value="org.eclipse.ant.internal.launching.remote.InternalAntRunner"/>
<stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="项目名"/>
<stringAttribute key="org.eclipse.jdt.launching.SOURCE_PATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
<stringAttribute key="org.eclipse.ui.externaltools.ATTR_ANT_TARGETS" value="init,clean,generwar,compile1,compile2,copy1,ok,"/>
<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${workspace_loc:/项目名/build.xml}"/>
<stringAttribute key="process_factory_id" value="org.eclipse.ant.ui.remoteAntProcessFactory"/>
</launchConfiguration>

注意里面的ant和jdk配置