From 2ee6d479fad6bb167c21de993b2cc172721b0d3d Mon Sep 17 00:00:00 2001
From: ChenX <maple6@vip.qq.com>
Date: Tue, 21 Apr 2020 20:34:53 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D:=E9=81=BF=E5=85=8D=E6=8B=86?=
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---
 src/Production/Product.ts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/Production/Product.ts b/src/Production/Product.ts
index 4056b4122..9a640f855 100644
--- a/src/Production/Product.ts
+++ b/src/Production/Product.ts
@@ -738,6 +738,8 @@ export namespace Production
         };
         for (let id of mids)
         {
+            if (!id || id.IsErase) continue;
+
             let metals = id.Object as HardwareCompositeEntity;
             if (!metals.HardwareOption)
                 continue;