I have a problem: when starting Tomcat I put the same credentials in the Authentication Required screen that I created in tomcat-users.xml, but this does not work for me.
Here is the content of tomcat-users.xml:
I don't understand why this happens.
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The error message in your screenshot is `Starting of Tomcat failed, the server port 8080 is already in use.` Is that the problem you _actually_ need to resolve? If so, see [Tomcat Server Error - Port 8080 already in use](https://stackoverflow.com/q/34253779/12567365) and many similar questions on Stack Overflow. – andrewJames Jun 29 '22 at 21:44
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You should also take a look at [why you should not upload images of code, data, errors](https://meta.stackoverflow.com/a/285557/12567365) when asking a question. The [ask] page also provides additional background guidance. Welcome! – andrewJames Jun 29 '22 at 21:46
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Your question is presented [as an XY problem](https://www.perlmonks.org/index.pl?node_id=542341): you want to resolve the problem of not being able to authenticate, but your actual problem, as @andrewJames pointed out, is _"Starting of Tomcat failed, the server port 8080 is already in use"_. So the most likely solution is to ensure that Tomcat is not already running before you start it, but regardless you need to ensure that port 8080 is available. Alternatively, use a different port number. If you do that then your perceived problem - authentication failing - will probably resolve itself. – skomisa Jul 02 '22 at 01:08
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Does this answer your question? [Deployment error:Starting of Tomcat failed, the server port 8080 is already in use](https://stackoverflow.com/questions/5310945/deployment-errorstarting-of-tomcat-failed-the-server-port-8080-is-already-in-u) – skomisa Jul 02 '22 at 01:09