From 7aa1fe32dee09ff0e75aee3d23b61fc07a630bf9 Mon Sep 17 00:00:00 2001
From: ManlyMarco <dummyaccx@gmail.com>
Date: Sun, 27 Oct 2019 00:32:40 +0200
Subject: [PATCH] Add better error message for missing BepInPlugin attribute
 instead of a nullref

---
 BepInEx/Contract/BaseUnityPlugin.cs | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/BepInEx/Contract/BaseUnityPlugin.cs b/BepInEx/Contract/BaseUnityPlugin.cs
index 0ecd8a5..83dca63 100644
--- a/BepInEx/Contract/BaseUnityPlugin.cs
+++ b/BepInEx/Contract/BaseUnityPlugin.cs
@@ -1,4 +1,5 @@
-using BepInEx.Bootstrap;
+using System;
+using BepInEx.Bootstrap;
 using BepInEx.Configuration;
 using BepInEx.Logging;
 using UnityEngine;
@@ -25,12 +26,15 @@ namespace BepInEx
 		/// </summary>
 		public ConfigFile Config { get; }
 
-		/// <summary>
-		/// Create a new instance of a plugin and all of its tied in objects.
-		/// </summary>
-		protected BaseUnityPlugin()
+        /// <summary>
+        /// Create a new instance of a plugin and all of its tied in objects.
+        /// </summary>
+        /// <exception cref="InvalidOperationException">BepInPlugin attribute is missing.</exception>
+        protected BaseUnityPlugin()
 		{
 			var metadata = MetadataHelper.GetMetadata(this);
+			if(metadata == null)
+				throw new InvalidOperationException("Can't create an instance of " + GetType().FullName + " because it inherits from BaseUnityPlugin and the BepInPlugin attribute is missing.");
 
 			if (Chainloader.PluginInfos.TryGetValue(metadata.GUID, out var info))
 				Info = info;