From 9d31f61ca91cd8b3a1815692070083079febe93a Mon Sep 17 00:00:00 2001
From: Dean Herbert <pe@ppy.sh>
Date: Mon, 22 Aug 2022 14:35:44 +0900
Subject: [PATCH] Don't throw when a ruleset type is completely missing

---
 osu.Game/Rulesets/RealmRulesetStore.cs | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/osu.Game/Rulesets/RealmRulesetStore.cs b/osu.Game/Rulesets/RealmRulesetStore.cs
index 7b1f3a3f6c..dba7f47f2f 100644
--- a/osu.Game/Rulesets/RealmRulesetStore.cs
+++ b/osu.Game/Rulesets/RealmRulesetStore.cs
@@ -68,8 +68,14 @@ namespace osu.Game.Rulesets
                 {
                     try
                     {
-                        var resolvedType = Type.GetType(r.InstantiationInfo)
-                                           ?? throw new RulesetLoadException(@"Type could not be resolved");
+                        var resolvedType = Type.GetType(r.InstantiationInfo);
+
+                        if (resolvedType == null)
+                        {
+                            // ruleset DLL was probably deleted.
+                            r.Available = false;
+                            continue;
+                        }
 
                         var instanceInfo = (Activator.CreateInstance(resolvedType) as Ruleset)?.RulesetInfo
                                            ?? throw new RulesetLoadException(@"Instantiation failure");