add missing file

superset-frontend/src/components/ErrorMessage/FrontendNetworkErrorMessage.tsx

@@ -0,0 +1,33 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+import { t } from '@superset-ui/core';
+
+import { ErrorMessageComponentProps } from './types';
+import ErrorAlert from './ErrorAlert';
+
+function FrontendNetworkErrorMessage({
+  error,
+  subtitle,
+}: ErrorMessageComponentProps) {
+  const { level, message } = error;
+  return (
+    <ErrorAlert errorType={t('Network Error')} message={message} type={level} />
+  );
+}
+export default FrontendNetworkErrorMessage;