Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires silverstripe/linkfield dev-pulls/3/anyfield-compat, found silverstripe/linkfield[dev-no-merge/just-testing, dev-master, dev-dev/rfc30/poc, dev-bugfix/legacy-resolver, dev-pulls/master/any-field-compatibility, dev-pulls/3/module-standardiser-1695769466, dev-pulls/4/remove-workaround, dev-pulls/4/support-checks, dev-pulls/4/improve-pre-loaded-state, 0.0.1, 1.0.0, 1.1.0, 1.x-dev, 2.x-dev (alias of dev-master), 5.x-dev] but it does not match the constraint. Problem 2 - Root composer.json requires maxime-rainville/silverstripe-linkfield-tester dev-master -> satisfiable by maxime-rainville/silverstripe-linkfield-tester[dev-master]. - maxime-rainville/silverstripe-linkfield-tester dev-master requires silverstripe/linkfield * -> found silverstripe/linkfield[dev-no-merge/just-testing, dev-master, dev-dev/rfc30/poc, dev-bugfix/legacy-resolver, dev-pulls/master/any-field-compatibility, dev-pulls/3/module-standardiser-1695769466, dev-pulls/4/remove-workaround, dev-pulls/4/support-checks, dev-pulls/4/improve-pre-loaded-state, 0.0.1, 1.0.0, 1.1.0, 1.x-dev, 2.x-dev (alias of dev-master), 5.x-dev] but it conflicts with your root composer.json require (dev-pulls/3/anyfield-compat).

Process completed with exit code 2.