You can only install one version of a package, so only one of these can be installed: symfony/finder[v2.1.0, ..., 2.8.x-dev, v3.0.0-BETA1, ..., 3.4.x-dev, v4.0.0-BETA1, ..., 4.4.x-dev, v5.0.0-BETA1, ..., 5.4.x-dev, v6.0.0-BETA1, ..., 6.4.x-dev, 7.0.x-dev].
Issue
`Problem 1
Changes
Allow higher version of symfony/finder