From 6356b2dde93c72b8fe4ee891b7cc649f3cca96ec Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bart=C5=82omiej=20Dach?= <dach.bartlomiej@gmail.com>
Date: Thu, 19 Nov 2020 22:11:52 +0100
Subject: [PATCH] Prevent editor from crashing for rulesets with no compose
 screen implementation

---
 osu.Game/Screens/Edit/Compose/ComposeScreen.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/osu.Game/Screens/Edit/Compose/ComposeScreen.cs b/osu.Game/Screens/Edit/Compose/ComposeScreen.cs
index d9948aa23c..46d5eb40b4 100644
--- a/osu.Game/Screens/Edit/Compose/ComposeScreen.cs
+++ b/osu.Game/Screens/Edit/Compose/ComposeScreen.cs
@@ -32,7 +32,8 @@ namespace osu.Game.Screens.Edit.Compose
             composer = ruleset?.CreateHitObjectComposer();
 
             // make the composer available to the timeline and other components in this screen.
-            dependencies.CacheAs(composer);
+            if (composer != null)
+                dependencies.CacheAs(composer);
 
             return dependencies;
         }