数据源管理bug

src/view/Manage/DatasourceManage/Component/UpdateTaskModal.jsx

 import React, { useEffect, useState } from 'react';
 import { Modal, Checkbox, Row, Col, Divider, Input, Typography, Form, Switch } from 'antd';
 
+import { showMessage } from '../../../../util';
 import { dispatch } from '../../../../model';
 
 const UpdateTaskModal = (props) => {
@@ -88,6 +89,11 @@ const UpdateTaskModal = (props) => {
     try {
       const row = await form.validateFields();
 
+      if ((selectedSchemas||[]).length===0) {
+        showMessage('warn', '请先选中scheme');
+        return;
+      }
+
       //深拷贝
       let newTask = JSON.parse(JSON.stringify(taskSettings));