Problem 1
- v17development/flarum-seo[v1.7.0, ..., v1.7.2] require flarum/core ^0.1.0-beta.16 -> found flarum/core[v0.1.0-beta.16] but it does not match your minimum-stabilit
y.
- Root composer.json requires v17development/flarum-seo ^1.7 -> satisfiable by v17development/flarum-seo[v1.7.0, v1.7.1, v1.7.2].
Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.
update issue
https://github.com/v17development/flarum-seo/search?q=16
https://discuss.flarum.org/d/18316-flarum-seo/454