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O servidor Apache2 não pode iniciar

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O servidor Apache2 não pode iniciar

Estou tentando iniciar o servidor Apache2 instalado no Ubuntu 22.04 LTS Desktop. Porém a reinicialização falhou e pelo que posso ver no log de erros, está relacionado à minha configuração. No entanto, não posso depurar mais sobre o problema exato. Minha configuração do servidor Apache2 é a seguinte.

cat /etc/apache2/sites-enabled/000-default.conf 
<VirtualHost *:80>
    # The ServerName directive sets the request scheme, hostname and port that
    # the server uses to identify itself. This is used when creating
    # redirection URLs. In the context of virtual hosts, the ServerName
    # specifies what hostname must appear in the request's Host: header to
    # match this virtual host. For the default virtual host (this file) this
    # value is not decisive as it is used as a last resort host regardless.
    # However, you must set it for any further virtual host explicitly.
    #ServerName www.example.com

    ServerAdmin webmaster@localhost
    DocumentRoot /var/www/html
    WSGIDaemonProcess flaskapp threads=5 python-home=/home/hd2900/Documents/Python/hd2900TakeawayPrint/env
    WSGIScriptAlias / /home/hd2900/Documents/Python/hd2900TakeawayPrint/flaskapp.wsgi
    WSGIApplicationGroup %{GLOBAL}

    <Directory /home/hd2900/Documents/Python/hd2900TakeawayPrint>
              WSGIProcessGroup flaskapp
              Require all granted
    </Directory>

    # Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
    # error, crit, alert, emerg.
    # It is also possible to configure the loglevel for particular
    # modules, e.g.
    #LogLevel info ssl:warn

    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined

    # For most configuration files from conf-available/, which are
    # enabled or disabled at a global level, it is possible to
    # include a line for only one particular virtual host. For example the
    # following line enables the CGI configuration for this host only
    # after it has been globally disabled with "a2disconf".
    #Include conf-available/serve-cgi-bin.conf
</VirtualHost>

# vim: syntax=apache ts=4 sw=4 sts=4 sr noet

Ao tentar iniciar o servidor

sudo service apache2 restart
Job for apache2.service failed because the control process exited with error code.
See "systemctl status apache2.service" and "journalctl -xeu apache2.service" for details.

Indo mais fundo no status do systemctl apache2.service, parece que tenho um problema na linha 18 em meu arquivo de configuração do apache2. Eu verifiquei essa linha e não consigo ver exatamente qual é o problema.

systemctl status apache2.service
× apache2.service - The Apache HTTP Server
     Loaded: loaded (/lib/systemd/system/apache2.service; enabled; vendor preset: enabled)
     Active: failed (Result: exit-code) since Sun 2022-08-28 00:11:46 CEST; 1min 14s ago
       Docs: https://httpd.apache.org/docs/2.4/
    Process: 4561 ExecStart=/usr/sbin/apachectl start (code=exited, status=1/FAILURE)
        CPU: 66ms

Aug 28 00:11:45 hd2900 systemd[1]: Starting The Apache HTTP Server...
Aug 28 00:11:46 hd2900 apachectl[4564]: AH00526: Syntax error on line 18 of /etc/apache2/sites-enabled/000-default.conf:
Aug 28 00:11:46 hd2900 apachectl[4564]: Invalid command '\xe2\x80\x86', perhaps misspelled or defined by a module not included in the server configuration
Aug 28 00:11:46 hd2900 apachectl[4561]: Action 'start' failed.
Aug 28 00:11:46 hd2900 apachectl[4561]: The Apache error log may have more information.
Aug 28 00:11:46 hd2900 systemd[1]: apache2.service: Control process exited, code=exited, status=1/FAILURE
Aug 28 00:11:46 hd2900 systemd[1]: apache2.service: Failed with result 'exit-code'.
Aug 28 00:11:46 hd2900 systemd[1]: Failed to start The Apache HTTP Server.

Também verifiquei o error.log e obtive a impressão abaixo. Ainda não tenho certeza de qual é o problema exato.

cat /var/log/apache2/error.log 
[Sat Aug 27 23:42:48.764507 2022] [mpm_event:notice] [pid 2886:tid 281473433382944] AH00489: Apache/2.4.52 (Ubuntu) configured -- resuming normal operations
[Sat Aug 27 23:42:48.765058 2022] [core:notice] [pid 2886:tid 281473433382944] AH00094: Command line: '/usr/sbin/apache2'
[Sat Aug 27 23:46:40.942688 2022] [mpm_event:notice] [pid 2886:tid 281473433382944] AH00492: caught SIGWINCH, shutting down gracefully
[Sat Aug 27 23:46:41.074596 2022] [mpm_event:notice] [pid 4010:tid 281473172430880] AH00489: Apache/2.4.52 (Ubuntu) mod_wsgi/4.9.0 Python/3.10 configured -- resuming normal operations
[Sat Aug 27 23:46:41.075061 2022] [core:notice] [pid 4010:tid 281473172430880] AH00094: Command line: '/usr/sbin/apache2'
[Sat Aug 27 23:52:16.956956 2022] [mpm_event:notice] [pid 4010:tid 281473172430880] AH00491: caught SIGTERM, shutting down

Responder1

Se você usar o comando cat -tevem vez de catlistar o conteúdo de file /etc/apache2/sites-enabled/000-default.conf, verá que as linhas 18 e 19 contêm alguns caracteres de controle estranhos, algo como estes:

[...]
    <Directory /home/hd2900/Documents/Python/hd2900TakeawayPrint>$
    M-bM-^@M-^F M-bM-^@M-^F M-bM-^@M-^F M-bM-^@M-^F M-bM-^@M-^F WSGIProcessGroup flaskapp$
    M-bM-^@M-^F M-bM-^@M-^F M-bM-^@M-^F M-bM-^@M-^F M-bM-^@M-^F Require all granted$
    </Directory>$
[...]

Provavelmente você copiou e colou essas diretivas de uma página da Web ou PDF.

Você deve excluir as linhas 18 e 19 deste arquivo e inserir novamente as diretivas de configuração manualmente no mesmo local:

WSGIProcessGroup flaskapp
Require all granted

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