[PATCH 4/4] combase: Add an error message when class is not found.

[Zhiyi Zhang]

From: Zhiyi Zhang

---
 dlls/combase/roapi.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/dlls/combase/roapi.c b/dlls/combase/roapi.c
index b11d53ff34e..e73917bb031 100644
--- a/dlls/combase/roapi.c
+++ b/dlls/combase/roapi.c
@@ -193,6 +193,10 @@ HRESULT WINAPI DECLSPEC_HOTPATCH RoGetActivationFactory(HSTRING classid, REFIID
         }
         IActivationFactory_Release(factory);
     }
+    else
+    {
+        ERR("Class %s not found in %s, hr %#lx.\n", wine_dbgstr_hstring(classid), debugstr_w(library), hr);
+    }

done:
     free(library);