update asset system

真机上使用错误方法加载原生文件的时候给予正确的错误提示。

Assets/YooAsset/Runtime/AssetSystem/Provider/BundledAllAssetsProvider.cs

@@ -53,6 +53,12 @@ namespace YooAsset
 					return;
 				}
 
+				if (OwnerBundle.CacheBundle == null)
+				{
+					ProcessCacheBundleException();
+					return;
+				}
+
 				Status = EStatus.Loading;
 			}
 

Assets/YooAsset/Runtime/AssetSystem/Provider/BundledAssetProvider.cs

@@ -55,12 +55,7 @@ namespace YooAsset
 
 				if (OwnerBundle.CacheBundle == null)
 				{
-					if (OwnerBundle.IsDestroyed)
-						throw new System.Exception("Should never get here !");
-					Status = EStatus.Failed;
-					LastError = $"The bundle {OwnerBundle.MainBundleInfo.Bundle.BundleName} has been destroyed by unity bugs !";
-					YooLogger.Error(LastError);
-					InvokeCompletion();
+					ProcessCacheBundleException();
 					return;
 				}
 

Assets/YooAsset/Runtime/AssetSystem/Provider/BundledSubAssetsProvider.cs

@@ -53,6 +53,12 @@ namespace YooAsset
 					return;
 				}
 
+				if (OwnerBundle.CacheBundle == null)
+				{
+					ProcessCacheBundleException();
+					return;
+				}
+
 				Status = EStatus.Loading;
 			}
 

Assets/YooAsset/Runtime/AssetSystem/Provider/ProviderBase.cs

@@ -220,6 +220,30 @@ namespace YooAsset
 			}
 		}
 
+		/// <summary>
+		/// 处理特殊异常
+		/// </summary>
+		protected void ProcessCacheBundleException()
+		{
+			if (OwnerBundle.IsDestroyed)
+				throw new System.Exception("Should never get here !");
+
+			if (OwnerBundle.MainBundleInfo.Bundle.IsRawFile)
+			{
+				Status = EStatus.Failed;
+				LastError = $"Cannot load asset bundle file using {nameof(ResourcePackage.LoadRawFileAsync)} method !";
+				YooLogger.Error(LastError);
+				InvokeCompletion();
+			}
+			else
+			{
+				Status = EStatus.Failed;
+				LastError = $"The bundle {OwnerBundle.MainBundleInfo.Bundle.BundleName} has been destroyed by unity bugs !";
+				YooLogger.Error(LastError);
+				InvokeCompletion();
+			}
+		}
+
 		/// <summary>
 		/// 异步操作任务
 		/// </summary>