Specified VM install not found: type Standard VM, name Java
下了一个新项目，使用SpringSource中执行ant脚本时，莫名提示以下错误：Specified VM install not found: type Standard VM, name Java
解决方案：
需要清除%ecliplse workspace%/.metadata/.plugins/org.eclipse.debug.core .launches/*. 下的所有文件，才能正常运行。
一个launches文件例子，带下划线部分为关键
<?
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
="false"
/>
<
listAttribute
key
="org.eclipse.debug.core.MAPPED_RESOURCE_PATHS"
/>
<
listAttribute
key
="org.eclipse.debug.core.MAPPED_RESOURCE_TYPES"
/>
<
stringAttribute
key
="org.eclipse.jdt.launching.CLASSPATH_PROVIDER"
value
="org.eclipse.ant.ui.AntClasspathProvider"
/>
<
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
="checkPro-as-build"
/>
<
stringAttribute
key
="org.eclipse.jdt.launching.SOURCE_PATH_PROVIDER"
value
="org.eclipse.ant.ui.AntClasspathProvider"
/>
<
stringAttribute
key
="org.eclipse.jdt.launching.VM_INSTALL_NAME"
value
="jre6"
/>
<
stringAttribute
key
="org.eclipse.jdt.launching.VM_INSTALL_TYPE_ID"
value
="org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType"
/>
<
stringAttribute
key
="org.eclipse.ui.externaltools.ATTR_LOCATION"
value
="${workspace_loc:/checkPro-as-build/build.xml}"
/>
<
stringAttribute
key
="process_factory_id"
value
="org.eclipse.ant.ui.remoteAntProcessFactory"
/>
</
launchConfiguration
>
springSource启动时会加载对应项目的launches文件，如果这其中规定了启动jre，则在springSource界面上定的Preference/java/Compiler规定的Java环境是没有作用的。
