我会在里面发出错误代码,求大神在线指导.

三月 12, 2015 4:20:07 上午 org.apache.catalina.valves.AccessLogValve open
SEVERE: Failed to open access log file [C:\Program Files\Apache Software Foundation\Tomcat 7.0\logs\localhost_access_log.2015-03-12.txt]
java.io.FileNotFoundException: C:\Program Files\Apache Software Foundation\Tomcat 7.0\logs\localhost_access_log.2015-03-12.txt (拒绝访问。)
at java.io.FileOutputStream.open(Native Method)
at java.io.FileOutputStream.<init>(FileOutputStream.java:212)
at org.apache.catalina.valves.AccessLogValve.open(AccessLogValve.java:1200)
at org.apache.catalina.valves.AccessLogValve.startInternal(AccessLogValve.java:1261)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.StandardPipeline.startInternal(StandardPipeline.java:185)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1137)
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:816)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:722)

你是运行项目的时候报错还是什么？