Logs for debugging a GAE app

Question

I've deployed an application to GAE and now I get "404 NOT_FOUND" error.

Where I can find out the detailed information about this error (stack trace) ?

In "Logs" and "Admin logs" I didn't find anything useful.

Note: By "logs" I do not mean logs for site visiting statistics.

Update: Now I managed to get rid of the 404 error. However, now I get another logging related error:

[s~project-control-center/1.352785038340247795].: Failed to instantiate [ch.qos.logback.classic.LoggerContext]

How can I fix it?

Answer 1

There have been some problems recently with displaying the logs in the admin console. You can try downloading the logs:

• Log Download Docs

Set --severity=0 to get the DEBUG level.

Answer 2

All requests are logged, but the default view is to show only logs with error messages. Click on 'Show: All requests' on the top of the logging page to show all requests.

There's unlikely to be a stacktrace for a 404 not found message, because no error occurred - the URL you attempted to fetch simply didn't exist.