疑难杂症

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tomcat Unable to create logger at.....






D:\Tomcat7.0\bin>tomcat7
系统找不到指定的路径。
Unable to create logger at 'D:\Tomcat 7.0\logs\commons-daemon.2011-10-11.log'
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/catalina/s
tartup/Bootstrap
Caused by: java.lang.ClassNotFoundException: org.apache.catalina.startup.Bootstr
ap
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
[2011-10-11 22:38:01] [error] FindClass org/apache/catalina/startup/Bootstrap fa
iled