diff --git a/Editor/Commands/StripAOTDllCommand.cs b/Editor/Commands/StripAOTDllCommand.cs
index 0a66cfc..c893a56 100644
--- a/Editor/Commands/StripAOTDllCommand.cs
+++ b/Editor/Commands/StripAOTDllCommand.cs
@@ -113,8 +113,7 @@ namespace HybridCLR.Editor.Commands
 
             if (report.summary.result != UnityEditor.Build.Reporting.BuildResult.Succeeded)
             {
-                Debug.LogError("GenerateStripedAOTDlls 失败");
-                return;
+                throw new Exception("GenerateStripedAOTDlls 失败");
             }
             Debug.Log($"GenerateStripedAOTDlls target:{target} group:{group} path:{outputPath}");
         }
diff --git a/Editor/Installer/BashUtil.cs b/Editor/Installer/BashUtil.cs
index 565f228..2dee189 100644
--- a/Editor/Installer/BashUtil.cs
+++ b/Editor/Installer/BashUtil.cs
@@ -88,6 +88,21 @@ namespace HybridCLR.Editor.Installer
             Directory.CreateDirectory(dir);
         }
 
+        private static void CopyWithCheckLongFile(string srcFile, string dstFile)
+        {
+            if (srcFile.Length > 255)
+            {
+                UnityEngine.Debug.LogError($"srcFile:{srcFile} path is too long. copy ignore!");
+                return;
+            }
+            if (dstFile.Length > 255)
+            {
+                UnityEngine.Debug.LogError($"dstFile:{dstFile} path is too long. copy ignore!");
+                return;
+            }
+            File.Copy(srcFile, dstFile);
+        }
+
         public static void CopyDir(string src, string dst, bool log = false)
         {
             if (log)
@@ -98,7 +113,7 @@ namespace HybridCLR.Editor.Installer
             Directory.CreateDirectory(dst);
             foreach(var file in Directory.GetFiles(src))
             {
-                File.Copy(file, $"{dst}/{Path.GetFileName(file)}");
+                CopyWithCheckLongFile(file, $"{dst}/{Path.GetFileName(file)}");
             }
             foreach(var subDir in Directory.GetDirectories(src))
             {