I am missing simplexml on my ubuntu machine but I can’t download it

so I get the following error while installing Pterodactyl panel:

Problem 1
- Installation request for aws/aws-sdk-php ^3.156 -> satisfiable by aws/aws-sdk-php[3.156.0].
- aws/aws-sdk-php 3.156.0 requires ext-simplexml * -> the requested PHP extension simplexml is missing from your system.
To enable extensions, verify that they are enabled in your .ini files:
    - /etc/php/7.4/cli/php.ini
    - /etc/php/7.4/cli/conf.d/10-mysqlnd.ini
    - /etc/php/7.4/cli/conf.d/10-opcache.ini
    - /etc/php/7.4/cli/conf.d/10-pdo.ini
    - /etc/php/7.4/cli/conf.d/20-bcmath.ini
    - /etc/php/7.4/cli/conf.d/20-calendar.ini
    - /etc/php/7.4/cli/conf.d/20-ctype.ini
    - /etc/php/7.4/cli/conf.d/20-exif.ini
    - /etc/php/7.4/cli/conf.d/20-ffi.ini
    - /etc/php/7.4/cli/conf.d/20-fileinfo.ini
    - /etc/php/7.4/cli/conf.d/20-ftp.ini
    - /etc/php/7.4/cli/conf.d/20-gettext.ini
    - /etc/php/7.4/cli/conf.d/20-iconv.ini
    - /etc/php/7.4/cli/conf.d/20-json.ini
    - /etc/php/7.4/cli/conf.d/20-mbstring.ini
    - /etc/php/7.4/cli/conf.d/20-mysqli.ini
    - /etc/php/7.4/cli/conf.d/20-pdo_mysql.ini
    - /etc/php/7.4/cli/conf.d/20-phar.ini
    - /etc/php/7.4/cli/conf.d/20-posix.ini
    - /etc/php/7.4/cli/conf.d/20-readline.ini
    - /etc/php/7.4/cli/conf.d/20-shmop.ini
    - /etc/php/7.4/cli/conf.d/20-sockets.ini
    - /etc/php/7.4/cli/conf.d/20-sysvmsg.ini
    - /etc/php/7.4/cli/conf.d/20-sysvsem.ini
    - /etc/php/7.4/cli/conf.d/20-sysvshm.ini
    - /etc/php/7.4/cli/conf.d/20-tokenizer.ini
    - /etc/php/7.4/cli/conf.d/20-zip.ini
  You can also run `php --ini` inside terminal to see which files are used by PHP in CLI mode.

but then when doing sudo apt-get install -y php-simplexml

it gives me this:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package php-simplexml is a virtual package provided by:
  php7.4-xml 7.4.10-1+ubuntu20.04.1+deb.sury.org+1
  php7.3-xml 7.3.22-1+ubuntu20.04.1+deb.sury.org+1
  php7.2-xml 7.2.33-1+ubuntu20.04.1+deb.sury.org+1
  php7.1-xml 7.1.33-17+ubuntu20.04.1+deb.sury.org+1
  php7.0-xml 7.0.33-30+ubuntu20.04.1+deb.sury.org+1
  php5.6-xml 5.6.40-30+ubuntu20.04.1+deb.sury.org+1
You should explicitly select one to install.
E: Package 'php-simplexml' has no installation candidate

what can I do?

I’m new to ubuntu and have no clue of what to do

Solution

As error says, You should explicitly select one to install.

Search for php version on your machine by

php --version

then use that version to install the package

sudo apt-get install -y  php<version>-xml
# so if you get 7.4 then it would be
sudo apt-get install -y  php7.4-xml

Thanks to @bassxzero for noticing php version.

Answered By — Dark Knight

Answer Checked By — Mary Flores (FixIt Volunteer)

This Answer collected from stackoverflow, is licensed under cc by-sa 2.5 , cc by-sa 3.0 and cc by-sa 4.0