common

我使用sudo apt安装tomcat8在Ubuntu 16上安装了tomcat8我只需要一个tomcat，不需要CATALINA_BASE。

但是，我收到了下面的警告。我可以忽略这些警告吗？或者我能做些什么？任何信息，将不胜感激。提前致谢。

Aug 07, 2016 8:01:32 PM org.apache.catalina.startup.ClassLoaderFactory validateFile WARNING: Problem with directory [/usr/share/tomcat8/common/classes], exists: [false], isDirectory: [false], canRead: [false] Aug 07, 2016 8:01:32 PM org.apache.catalina.startup.ClassLoaderFactory validateFile WARNING: Problem with directory [/usr/share/tomcat8/common], exists: [false], isDirectory: [false], canRead: [false] Aug 07, 2016 8:01:32 PM org.apache.catalina.startup.ClassLoaderFactory validateFile WARNING: Problem with directory [/usr/share/tomcat8/server/classes], exists: [false], isDirectory: [false], canRead: [false] Aug 07, 2016 8:01:32 PM org.apache.catalina.startup.ClassLoaderFactory validateFile WARNING: Problem with directory [/usr/share/tomcat8/server], exists: [false], isDirectory: [false], canRead: [false] Aug 07, 2016 8:01:32 PM org.apache.catalina.startup.ClassLoaderFactory validateFile WARNING: Problem with directory [/usr/share/tomcat8/shared/classes], exists: [false], isDirectory: [false], canRead: [false] Aug 07, 2016 8:01:32 PM org.apache.catalina.startup.ClassLoaderFactory validateFile WARNING: Problem with directory [/usr/share/tomcat8/shared], exists: [false], isDirectory: [false], canRead: [false]