diff --git a/Editor/Installer/InstallerController.cs b/Editor/Installer/InstallerController.cs
index e67793c..72730f2 100644
--- a/Editor/Installer/InstallerController.cs
+++ b/Editor/Installer/InstallerController.cs
@@ -18,6 +18,7 @@ namespace HybridCLR.Editor.Installer
     public enum InstallErrorCode
     {
         Ok,
+        InvalidUnityInstallPath,
         Il2CppInstallPathNotMatchIl2CppBranch,
         Il2CppInstallPathNotExists,
         NotIl2CppPath,
@@ -233,7 +234,9 @@ namespace HybridCLR.Editor.Installer
 
             if (!IsComaptibleWithIl2CppPlusBranch(il2cppBranch, installDir))
             {
-                return InstallErrorCode.Il2CppInstallPathNotMatchIl2CppBranch;
+                return TryParseMinorVersion(installDir, out _) ?
+                    InstallErrorCode.Il2CppInstallPathNotMatchIl2CppBranch
+                    : InstallErrorCode.InvalidUnityInstallPath;
             }
 
             if (!installDir.EndsWith("/il2cpp"))
diff --git a/Editor/Installer/InstallerWindow.cs b/Editor/Installer/InstallerWindow.cs
index d5fd6ac..07ff58b 100644
--- a/Editor/Installer/InstallerWindow.cs
+++ b/Editor/Installer/InstallerWindow.cs
@@ -79,24 +79,29 @@ namespace HybridCLR.Editor.Installer
             switch (err)
             {
                 case InstallErrorCode.Ok:
-                    {
-                        break;
-                    }
+                {
+                    break;
+                }
                 case InstallErrorCode.Il2CppInstallPathNotExists:
-                    {
-                        EditorGUILayout.HelpBox("li2cpp 路径不存在", MessageType.Error);
-                        break;
-                    }
+                {
+                    EditorGUILayout.HelpBox("li2cpp 路径不存在", MessageType.Error);
+                    break;
+                }
+                case InstallErrorCode.InvalidUnityInstallPath:
+                {
+                    EditorGUILayout.HelpBox($"Unity安装目录必须包含版本号，否则无法识别版本", MessageType.Error);
+                    break;
+                }
                 case InstallErrorCode.Il2CppInstallPathNotMatchIl2CppBranch:
-                    {
-                        EditorGUILayout.HelpBox($"il2cpp 版本不兼容，最小版本为 {m_Controller.GetMinCompatibleVersion(m_Controller.Il2CppBranch)}", MessageType.Error);
-                        break;
-                    }
+                {
+                    EditorGUILayout.HelpBox($"il2cpp 版本不兼容，最小版本为 {m_Controller.GetMinCompatibleVersion(m_Controller.Il2CppBranch)}", MessageType.Error);
+                    break;
+                }
                 case InstallErrorCode.NotIl2CppPath:
-                    {
-                        EditorGUILayout.HelpBox($"当前选择的路径不是il2cpp目录（必须类似 xxx/il2cpp）", MessageType.Error);
-                        break;
-                    }
+                {
+                    EditorGUILayout.HelpBox($"当前选择的路径不是il2cpp目录（必须类似 xxx/il2cpp）", MessageType.Error);
+                    break;
+                }
                 default: throw new Exception($"not support {err}");
             }
         }
diff --git a/Runtime/RuntimeApi.cs b/Runtime/RuntimeApi.cs
index 417c737..84552c8 100644
--- a/Runtime/RuntimeApi.cs
+++ b/Runtime/RuntimeApi.cs
@@ -18,6 +18,18 @@ namespace HybridCLR
     private const string dllName = "il2cpp";
 #endif
 
+        public static unsafe LoadImageErrorCode LoadMetadataForAOTAssembly(byte[] dllBytes)
+        {
+#if UNITY_EDITOR
+            throw new NotSupportedException("LoadMetadataForAOTAssembly can only be invoked in il2cpp");
+#else
+            fixed(byte* data = dllBytes)
+            {
+                return (LoadImageErrorCode)LoadMetadataForAOTAssembly((IntPtr)data, dllBytes.Length);
+            }
+#endif
+        }
+
         [DllImport(dllName, EntryPoint = "RuntimeApi_LoadMetadataForAOTAssembly")]
         public static extern int LoadMetadataForAOTAssembly(IntPtr dllBytes, int dllSize);
 
diff --git a/package.json b/package.json
index 1261e6a..a94c781 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "com.focus-creative-games.hybridclr_unity",
-  "version": "0.3.3",
+  "version": "0.3.4",
   "displayName": "HybridCLR",
   "description": "Unity package for HybridCLR. It includes editor and runtime scripts and assets for HybridCLR",
   "category": "Runtime",