From d12d469dfb8d7466615b085aac0d461ff18a4465 Mon Sep 17 00:00:00 2001
From: Bjorn Lu <bjornlu.dev@gmail.com>
Date: Thu, 14 Jul 2022 17:51:52 +0800
Subject: [PATCH] fix: check server after tsconfig reload (#9106)

---
 packages/vite/src/node/plugins/esbuild.ts | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/packages/vite/src/node/plugins/esbuild.ts b/packages/vite/src/node/plugins/esbuild.ts
index 42e5bbac76316a..16edee000fbb82 100644
--- a/packages/vite/src/node/plugins/esbuild.ts
+++ b/packages/vite/src/node/plugins/esbuild.ts
@@ -437,11 +437,14 @@ function reloadOnTsconfigChange(changedFile: string) {
 
     // reset tsconfck so that recompile works with up2date configs
     initTSConfck(server.config).finally(() => {
-      // force full reload
-      server.ws.send({
-        type: 'full-reload',
-        path: '*'
-      })
+      // server may not be available if vite config is updated at the same time
+      if (server) {
+        // force full reload
+        server.ws.send({
+          type: 'full-reload',
+          path: '*'
+        })
+      }
     })
   }
 }