Release 2.0.3.

module/migration.mjs

@@ -410,7 +410,7 @@ export const getMigrationData = async function() {
  * @private
  */
 function _migrateActorMovement(actorData, updateData) {
-  const attrs = actorData.system.attributes || {};
+  const attrs = actorData.system?.attributes || {};
 
   // Work is needed if old data is present
   const old = actorData.type === "vehicle" ? attrs.speed : attrs.speed?.value;
@@ -440,7 +440,7 @@ function _migrateActorMovement(actorData, updateData) {
  * @private
  */
 function _migrateActorSenses(actor, updateData) {
-  const oldSenses = actor.system.traits?.senses;
+  const oldSenses = actor.system?.traits?.senses;
   if ( oldSenses === undefined ) return;
   if ( typeof oldSenses !== "string" ) return;
 
@@ -480,7 +480,7 @@ function _migrateActorSenses(actor, updateData) {
  * @private
  */
 function _migrateActorType(actor, updateData) {
-  const original = actor.system.details?.type;
+  const original = actor.system?.details?.type;
   if ( typeof original !== "string" ) return;
 
   // New default data structure
@@ -511,7 +511,7 @@ function _migrateActorType(actor, updateData) {
     actorTypeData.subtype = match.groups.subtype?.trim().titleCase() || "";
 
     // Match a swarm
-    const isNamedSwarm = actor.name.startsWith(game.i18n.localize("DND5E.CreatureSwarm"));
+    const isNamedSwarm = actor.name?.startsWith(game.i18n.localize("DND5E.CreatureSwarm"));
     if ( match.groups.size || isNamedSwarm ) {
       const sizeLc = match.groups.size ? match.groups.size.trim().toLowerCase() : "tiny";
       const sizeMatch = Object.entries(CONFIG.DND5E.actorSizes).find(([k, v]) => {

system.json

@@ -2,15 +2,15 @@
   "id": "dnd5e",
   "title": "DnD5e - Fifth Edition System",
   "description": "A system for playing the fifth edition of the worlds most popular role-playing game in the Foundry Virtual Tabletop environment.",
-  "version": "2.0.2",
+  "version": "2.0.3",
   "compatibility": {
     "minimum": "10",
     "verified": "10",
     "maximum": "10"
   },
   "url": "https://github.com/foundryvtt/dnd5e/",
   "manifest": "https://raw.githubusercontent.com/foundryvtt/dnd5e/master/system.json",
-  "download": "https://github.com/foundryvtt/dnd5e/releases/download/release-2.0.2/dnd5e-release-2.0.2.zip",
+  "download": "https://github.com/foundryvtt/dnd5e/releases/download/release-2.0.3/dnd5e-release-2.0.3.zip",
   "authors": [
     {
       "name": "Atropos",
@@ -132,7 +132,7 @@
   "primaryTokenAttribute": "attributes.hp",
   "secondaryTokenAttribute": null,
   "flags": {
-    "needsMigrationVersion": "2.0.0",
+    "needsMigrationVersion": "2.0.2",
     "compatibleMigrationVersion": "0.8"
   }
 }