src/Hotline.Api/StartupExtensions.cs

@@ -89,7 +89,7 @@ internal static class StartupExtensions
         //mediatr
         services.AddMediatR(d =>
         {
-            d.RegisterServicesFromAssemblyContaining<Program>();
+            d.RegisterServicesFromAssembly(typeof(ApplicationStartupExtensions).Assembly);
         });
 
         //迅时IPPBX