class path resource [log4j.properties] cannot be resolved to URL because it does not exist

从svn上拉代码，然后在导进eclipse，启动Tomcat，报错

Invalid 'log4jConfigLocation' parameter: class path resource [log4j.xml] cannot be resolved to URL because it does not exist

解决方案：

项目名右键--》属性--》Java build path--》source 看看文件是否都添加进去了，如果没有点击 add folder添加