diff --git a/src/InterfaceForward.Application/InterfaceForwardApplicationModule.cs b/src/InterfaceForward.Application/InterfaceForwardApplicationModule.cs
index 0c2d400..a4d3809 100644
--- a/src/InterfaceForward.Application/InterfaceForwardApplicationModule.cs
+++ b/src/InterfaceForward.Application/InterfaceForwardApplicationModule.cs
@@ -61,6 +61,9 @@ public class InterfaceForwardApplicationModule:FakeModule
 
     static void PreheatNatasha()
     {
+        // aspnet 非 root 时 /app 不可写；k8s 已在 api.yaml 挂 emptyDir → /app/DynamicLibraryFolders
+        Directory.CreateDirectory(Path.Combine(AppContext.BaseDirectory, "DynamicLibraryFolders"));
+
         NatashaManagement.Preheating<NatashaDomainCreator>(false, false);
 
         var context = new ForwardCoreContext();