error dialog introduced

ui/hv2-ui/src/app/error-dialog.service.ts

@@ -0,0 +1,18 @@
+import { Injectable } from '@angular/core';
+import { MatDialog } from '@angular/material/dialog';
+import { ErrorDialogComponent } from './error-dialog/error-dialog.component';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class ErrorDialogService {
+
+  constructor(public dialog: MatDialog) { }
+
+  openDialog(module: string, func: string, msg: string): void {
+    const dialogRef = this.dialog.open(ErrorDialogComponent, {
+      width: '450px',
+      data: { module: module, func: func, msg: msg }
+    })
+  }
+}