eclipse 启动 web项目 时报的错

[langwu3]

Error creating bean with name 'configurationManager' defined in URL [jar:file:/C:/Users/Administrator/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/demo/WEB-INF/lib/platform-core-1.0.0-SNAPSHOT.jar!/gov/platform/core/config/ConfigurationManager.class]: Invocation of init method failed; nested exception is gov.platform.core.Configuration$1: 平台环境变量 platform_path 未设置！

JDK 为 1.6 并且已经配置好环境变量，eclipse 版本为 Kepler Service Release 1