Fixed migration, Spell Skill

module/helpers/migration-helper.js

@@ -0,0 +1,23 @@
+/**
+ * Perform a system migration for the entire World, applying migrations for Actors, Items, and Compendium packs
+ * @return {Promise}      A Promise which resolves once the migration is completed
+ */
+export const migrateWorld = async function () {
+    ui.notifications.info(
+        `Applying System Migration for version ${game.system.data.version}. Please be patient and do not close your game or shut down your server.`,
+        {permanent: true}
+    );
+
+    console.log(game.system.data.version)
+
+    game.items.forEach((item) => {
+        // Migrate to v0.1 from v0.0.1 and v0.0.1
+        if (item.data.type === "spell") {
+            item.update({"data.roll.label": "SPELL.ROLLTITLE"});
+        }
+    });
+
+    // Set the migration as complete
+    game.settings.set("kopparhavet", "worldSchemaVersion", game.system.data.version);
+    ui.notifications.info(`System Migration to version ${game.system.data.version} completed!`, { permanent: true });
+}