如何解决运行 Composer 的致命错误？

Question

Newbie question: When attempting to run Composer (any command involving Composer like composer --version ), I get the following error:

Fatal error: require(): Failed opening required 'phar://composer.phar/bin/composer' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /opt/cpanel/composer/bin/composer on line 24

Composer is in the $PATH :

/usr/local/cpanel/3rdparty/lib/path-bin\
:/usr/local/jdk/bin:/usr/local/cpanel/3rdparty/lib/path-bin\
:/usr/lib64/qt-3.3/bin:/usr/local/cpanel/3rdparty/lib/path-bin\
:/usr/local/jdk/bin:/usr/kerberos/sbin:/usr/kerberos/bin\
:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin\
:/usr/X11R6/bin:/usr/local/bin:/usr/X11R6/bin:/root/bin:/opt/bin\
:/opt/cpanel/composer/bin:/usr/local/easy/bin:/usr/local/bin\
:/usr/X11R6/bin:/root/bin\
:/opt/cpanel/composer/bin ## <<< !! SEE HERE !! <<<

What is missing in the install of Composer?

System is running CentOS v86.0.40 and PHP 5.5, which I cannot update due to legacy PHP code.

The goal is to update a Drupal 8 site instance (blech) via Composer.

Thanks.

Answer 1

How to install composer?

sudo mv composer.phar /usr/local/bin/composer

Now, you need to do chmod +x composer inside the directory, where it is placed. All as root user.

or you can move to usr/bin/composer , notice the extension, first it was phar or php archive now, the current file has no extension.

Check if you can have composer --version and have proper permissions for executing file or data operations.

It is Linux user permissions issues.