diff --git a/apps/wpm/views.py b/apps/wpm/views.py
index 0cc86700..938b78cf 100644
--- a/apps/wpm/views.py
+++ b/apps/wpm/views.py
@@ -603,8 +603,9 @@ class MlogbInViewSet(CreateModelMixin, UpdateModelMixin, DestroyModelMixin, Cust
                         raise ParseError("生成产出出错2")
                     if material_out.tracking == Material.MA_TRACKING_SINGLE:
                         for mlogbwin in Mlogbw.objects.filter(mlogb=mlogbin).order_by("number"):
+                            wpr_ = mlogbwin.wpr
                             for i in range(div_number):
-                                Mlogbw.objects.get_or_create(mlogb=mlogbout, number=f'{wpr.number}-{i+1}', defaults={"mlogbw_from": mlogbwin})
+                                Mlogbw.objects.get_or_create(mlogb=mlogbout, number=f'{wpr_.number}-{i+1}', defaults={"mlogbw_from": mlogbwin})
             elif material_in.tracking == Material.MA_TRACKING_BATCH and material_out.tracking == Material.MA_TRACKING_BATCH:
                 d_count_real = mlogbin.count_use * div_number
                 d_count_ok = d_count_real