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fix(ui): P0 切换空线程不显示错误横幅
Trigger auto deployment for soc-langgraph / build-and-deploy (push) Failing after 35s
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Deploy LangGraph UI to Azure Static Web Apps / build-and-deploy (push) Failing after 37s
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thread.error 在 useStream 切换 threadId 时不会自动清除，
导致切换到空新对话时残留旧线程的 error 触发红色错误横幅。
修复：activeMessages.length === 0 时抑制错误横幅，
空线程不可能有工具执行异常，无需展示该提示。

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
gongzhiyong
2026-04-15 01:05:14 +08:00
co-authored by Claude Sonnet 4.6
parent ac1eaf63c3
commit 671e708bb5
1 changed files with 2 additions and 2 deletions
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langgraph/src/components/ChatMessages.tsx
+2 -2
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@@ -435,8 +435,8 @@ export function ChatMessages({
)); ));
})()} })()}
{/* Thread error banner */} {/* Thread error banner — only show when there are messages (suppress stale error on empty thread switch) */}
{!!thread.error && !thread.isLoading && ( {!!thread.error && !thread.isLoading && activeMessages.length > 0 && (
<div className="rounded-xl border border-red-300 dark:border-red-800 bg-red-50 dark:bg-red-950/30 px-4 py-4 flex flex-col gap-3 my-2"> <div className="rounded-xl border border-red-300 dark:border-red-800 bg-red-50 dark:bg-red-950/30 px-4 py-4 flex flex-col gap-3 my-2">
<div className="flex items-start gap-2.5"> <div className="flex items-start gap-2.5">
<AlertTriangle className="size-4 shrink-0 text-red-500 dark:text-red-400 mt-0.5" /> <AlertTriangle className="size-4 shrink-0 text-red-500 dark:text-red-400 mt-0.5" />