MOSS system "Unexpected error" debugging method

Anyone who has been in touch with the MOSS system will often encounter "unexpected errors ." Whether it is a designer or a developer, it will often cause this problem to modify MasterPage or a well-developed WebPart. The most important thing is that when an error occurs, only the prompt is displayed, why is the error, what's wrong? It's not very clear. It's really crazy! In fact, there is no way to view the cause of an "Unexpected error" by logging. The specific method is as follows: First, open the SharePoint 3.0 management center, select "operation", open "diagnosis log record", and set the log record in it. Please note that the log file usage time cannot be too long, otherwise, a single log file will be very large and not easy to view. Use the default Log Path: "C: \ Program Files \ Common Files \ Microsoft Shared \ web server extensions \ 12 \ LOGS", which contains many log Files, sorted by time, find the latest log file. After opening it, you can see the error message "Unexpected error". Of course, there are too many logs in this log file, you need to filter out the error information by yourself :). Now that you have found the cause of the error, you should know how to handle it ~