diff --git a/Assets/YooAsset/Runtime/PackageSystem/ResourcePackage.cs b/Assets/YooAsset/Runtime/PackageSystem/ResourcePackage.cs
index b31c900..7182387 100644
--- a/Assets/YooAsset/Runtime/PackageSystem/ResourcePackage.cs
+++ b/Assets/YooAsset/Runtime/PackageSystem/ResourcePackage.cs
@@ -844,6 +844,7 @@ namespace YooAsset
 
 		public long GetCachedTagsRawFileSize(string[] tags)
 		{
+			DebugCheckInitialize();
 			var list = _playModeServices.GetCachedTagsRawFiles(tags);
 			long size = 0;
 			for (var i = 0; i < list.Count; i++)
@@ -855,6 +856,7 @@ namespace YooAsset
 
 		internal List<PackageBundle> GetCachedTagsRawFiles(string[] tags)
 		{
+			DebugCheckInitialize();
 			return _playModeServices.GetCachedTagsRawFiles(tags);
 		}
 		public ClearTagsCachedRawFilesOperation ClearTagsCacheFilesAsync(string[] tags)