修改

src/components/TravelContractDetail.vue

@@ -911,7 +911,7 @@
         let urlObj = this.domainManager();
         let msg = {
           TCID: this.$route.query.TCID,
-          guestId: this.msg.guestId,
+          GuestId: this.msg.guestId,
           orderID: this.$route.query.orderID,
         };
         this.pdfLoading=true;