diff --git a/server-dev/start-all-server.sh b/server-dev/start-all-server.sh
index e118635..048fc3e 100755
--- a/server-dev/start-all-server.sh
+++ b/server-dev/start-all-server.sh
@@ -156,6 +156,8 @@ trigger_remote_deploy() {
 
 build_chatbot_app_for_deploy() {
   log "chatbotApp 로컬 빌드 (서버 Next.js 대신 public/ 생성)..."
+  chmod -R u+w "${APP_DIR}/public-sample" 2>/dev/null || true
+  rm -rf "${APP_DIR}/public-sample" 2>/dev/null || true
   (
     cd "${APP_DIR}/web"
     npm ci --prefer-offline 2>/dev/null || npm install