From 79e006467c2010225f817dfbbb6452e87ef02f1d Mon Sep 17 00:00:00 2001
From: pengx17 <pengxiao@outlook.com>
Date: Mon, 30 Dec 2024 16:54:44 +0000
Subject: [PATCH] fix(core): split view solo view crash (#9432)

---
 .../frontend/core/src/modules/workbench/entities/workbench.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/frontend/core/src/modules/workbench/entities/workbench.ts b/packages/frontend/core/src/modules/workbench/entities/workbench.ts
index 09bbb38901..c6c761b0ac 100644
--- a/packages/frontend/core/src/modules/workbench/entities/workbench.ts
+++ b/packages/frontend/core/src/modules/workbench/entities/workbench.ts
@@ -43,8 +43,10 @@ export class Workbench extends Entity {
   activeView$ = LiveData.computed(get => {
     const activeIndex = get(this.activeViewIndex$);
     const views = get(this.views$);
-    return views[activeIndex]; // todo: this could be null
+    // activeIndex could be out of bounds when reordering views
+    return views.at(activeIndex) || views[0];
   });
+
   location$ = LiveData.computed(get => {
     return get(get(this.activeView$).location$);
   });