다운그레이드

Assets/Scripts/Characters/EnemyManager.cs

@@ -39,8 +39,8 @@ public class EnemyManager : Singleton<EnemyManager>
     // constructor
     protected EnemyManager()
     {
-        string dropTableDataPath = null;
-        string actionTableDataPath = null;
+        string dropTableDataPath = "";
+        string actionTableDataPath = "";
 
         LoadDropTable(dropTableDataPath);
         LoadActionTable(actionTableDataPath);

Packages/manifest.json

 {
   "dependencies": {
-    "com.unity.ads": "2.3.1",
-    "com.unity.analytics": "3.2.2",
-    "com.unity.collab-proxy": "1.2.15",
-    "com.unity.package-manager-ui": "2.0.3",
+    "com.unity.ads": "2.0.8",
+    "com.unity.analytics": "2.0.16",
+    "com.unity.package-manager-ui": "1.9.11",
     "com.unity.purchasing": "2.0.3",
-    "com.unity.textmeshpro": "1.3.0",
+    "com.unity.textmeshpro": "1.2.4",
     "com.unity.modules.ai": "1.0.0",
     "com.unity.modules.animation": "1.0.0",
     "com.unity.modules.assetbundle": "1.0.0",

ProjectSettings/ProjectVersion.txt

-m_EditorVersion: 2018.3.0f2
+m_EditorVersion: 2018.2.0f2