`composer require jaeger/querylist-phantomjs
Using version ^4.0 for jaeger/querylist-phantomjs
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Restricting packages listed in "symfony/symfony" to "5.1.*"
Your requirements could not be resolved to an installable set of packages.
`composer require jaeger/querylist-phantomjs Using version ^4.0 for jaeger/querylist-phantomjs ./composer.json has been updated Loading composer repositories with package information Updating dependencies (including require-dev) Restricting packages listed in "symfony/symfony" to "5.1.*" Your requirements could not be resolved to an installable set of packages.
Problem 1
Potential causes:
Read https://getcomposer.org/doc/articles/troubleshooting.md for further common problems.
Installation failed, reverting ./composer.json to its original content.`