Your requirements could not be resolved to an installable set of packages.
Problem 1
- Root composer.json requires malamalca/wideimage ^1.1.7, found malamalca/wideimage[v1.x-dev] but it does not match your minimum-stability.
Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.