From 6dbe4d72713278b36bbf22cbb9adf7cfe9f25944 Mon Sep 17 00:00:00 2001
From: modmuss50 <modmuss50@gmail.com>
Date: Wed, 5 Apr 2017 13:23:06 +0100
Subject: [PATCH] Fix NPE when downloading libs.

---
 src/main/java/net/fabricmc/loom/util/Version.java | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/main/java/net/fabricmc/loom/util/Version.java b/src/main/java/net/fabricmc/loom/util/Version.java
index 474b51e..7a09f0b 100644
--- a/src/main/java/net/fabricmc/loom/util/Version.java
+++ b/src/main/java/net/fabricmc/loom/util/Version.java
@@ -83,7 +83,11 @@ public class Version {
 			if (natives == null) {
 				return "";
 			} else {
-				return "-" + natives.get(OperatingSystem.getOS().replace("${arch}", OperatingSystem.getArch())).getAsString().replace("\"", "");
+				JsonElement element = natives.get(OperatingSystem.getOS().replace("${arch}", OperatingSystem.getArch()));
+				if(element == null){
+					return "";
+				}
+				return "-" + element.getAsString().replace("\"", "");
 			}
 		}