From a2f61b7136707574d305b6f4be6ca02f2f4e677e Mon Sep 17 00:00:00 2001
From: uye <2396806385@qq.com>
Date: Fri, 20 Jan 2023 00:19:49 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8D=E4=B8=80=E4=B8=AA?=
 =?UTF-8?q?=E5=8F=AF=E8=83=BD=E5=AD=98=E5=9C=A8=E7=9A=84=E9=94=99=E8=AF=AF?=
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---
 src/MaaWpfGui/Main/TaskQueueViewModel.cs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/MaaWpfGui/Main/TaskQueueViewModel.cs b/src/MaaWpfGui/Main/TaskQueueViewModel.cs
index 342a833878..98a1caaf00 100644
--- a/src/MaaWpfGui/Main/TaskQueueViewModel.cs
+++ b/src/MaaWpfGui/Main/TaskQueueViewModel.cs
@@ -1384,6 +1384,11 @@ namespace MaaWpfGui
 
         private string ToUpperAndCheckStage(string value)
         {
+            if (string.IsNullOrEmpty(value))
+            {
+                return value;
+            }
+
             value = value.ToUpper();
             if (StageList != null)
             {