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PHP   1. {main}() /usr/bin/composer1.x:0
PHP   2. spl_autoload_call() /usr/bin/composer1.x:19
PHP   3. {closure:/usr/share/php/Composer/autoload.php:19-275}() /usr/bin/composer1.x:19
PHP   4. require() /usr/share/php/Composer/autoload.php:273
PHP   5. trigger_error() /usr/share/php/Composer/XdebugHandler.php:17
PHP Deprecated:  The Composer\XdebugHandler class is deprecated, use Composer\XdebugHandler\XdebugHandler instead, in /usr/share/php/Composer/XdebugHandler.php on line 17
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Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - The requested package tornevall/tornelib-php-version could not be found in any version, there may be a typo in the package name.

Potential causes:
- A typo in the package name
- The package is not available in a stable-enough version according to your minimum-stability setting
   see <https://getcomposer.org/doc/04-schema.md#minimum-stability> for more details.
- It's a private package and you forgot to add a custom repository to find it

Read <https://getcomposer.org/doc/articles/troubleshooting.md> for further common problems.