From 10d76da61b07296bcc7e41e5e0758848607535c9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Matthias=20Mail=C3=A4nder?= <matthias@mailaender.name>
Date: Sat, 4 Jul 2015 09:43:31 +0200
Subject: [PATCH] fix a null reference exception

---
 OpenRA.Game/FieldLoader.cs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/OpenRA.Game/FieldLoader.cs b/OpenRA.Game/FieldLoader.cs
index a186a678e7..63b99f3988 100644
--- a/OpenRA.Game/FieldLoader.cs
+++ b/OpenRA.Game/FieldLoader.cs
@@ -438,11 +438,15 @@ namespace OpenRA
 
 		static object ParseYesNo(string p, Type fieldType, string field)
 		{
+			if (string.IsNullOrEmpty(p))
+				return InvalidValueAction(p, fieldType, field);
+
 			p = p.ToLowerInvariant();
 			if (p == "yes") return true;
 			if (p == "true") return true;
 			if (p == "no") return false;
 			if (p == "false") return false;
+
 			return InvalidValueAction(p, fieldType, field);
 		}