使用ng-zorro图标库出现the icon redo-o does not exist or is not registered.

出现这种情况一般是因为没导入你要的图标

可以在项目目录找到这个文件  src\style-icons-auto.ts

然后打开，导入导出里加上你要导入的图标。。。。  就可以了

如果你不知道要怎么加

那么你可以鼠标左键点击其他的

例如：点这个

AlipayCircleOutline

按住CTRL键，就跳过去了，你会看到你进入了nodemodules    
然后你找一下你要的图标文件，导入导出就OK 了

/*
* Automatically generated by 'ng g ng-alain:plugin icon'
* @see https://ng-alain.com/cli/plugin#icon
*/

import {
  AlipayCircleOutline,
  ApiOutline,
  AppstoreOutline,
  ArrowDownOutline,
  BookOutline,
  CloudOutline,
  CopyrightOutline,
  CustomerServiceOutline,
  DashboardOutline,
  DatabaseOutline,
  DingdingOutline,
  DislikeOutline,
  DownloadOutline,
  ForkOutline,
  FrownOutline,
  FullscreenExitOutline,
  FullscreenOutline,
  GithubOutline,
  GlobalOutline,
  HddOutline,
  LaptopOutline,
  LikeOutline,
  LockOutline,
  LogoutOutline,
  MailOutline,
  MenuFoldOutline,
  MenuUnfoldOutline,
  MessageOutline,
  PayCircleOutline,
  PieChartOutline,
  PrinterOutline,
  RocketOutline,
  ScanOutline,
  SettingOutline,
  ShareAltOutline,
  ShoppingCartOutline,
  SoundOutline,
  FastForwardOutline,
  StarOutline,
  TaobaoCircleOutline,
  StepBackwardOutline,
  TaobaoOutline,
  TeamOutline,
  ToolOutline,
  TrophyOutline,
  StepForwardOutline,
  FastBackwardOutline,
  UsbOutline,
  UserOutline,
  WeiboCircleOutline
} from '@ant-design/icons-angular/icons';

export const ICONS_AUTO = [
  AlipayCircleOutline,
  ApiOutline,
  AppstoreOutline,
  ArrowDownOutline,
  BookOutline,
  CloudOutline,
  CopyrightOutline,
  CustomerServiceOutline,
  DashboardOutline,
  DatabaseOutline,
  DingdingOutline,
  DislikeOutline,
  DownloadOutline,
  ForkOutline,
  FrownOutline,
  FullscreenExitOutline,
  FastBackwardOutline,
  FastForwardOutline,
  StepBackwardOutline,
  FullscreenOutline,
  GithubOutline,
  GlobalOutline,
  HddOutline,
  LaptopOutline,
  LikeOutline,
  LockOutline,
  LogoutOutline,
  MailOutline,
  MenuFoldOutline,
  MenuUnfoldOutline,
  StepForwardOutline,
  MessageOutline,
  PayCircleOutline,
  PieChartOutline,
  PrinterOutline,
  RocketOutline,
  ScanOutline,
  SettingOutline,
  ShareAltOutline,
  ShoppingCartOutline,
  SoundOutline,
  StarOutline,
  TaobaoCircleOutline,
  TaobaoOutline,
  TeamOutline,
  ToolOutline,
  TrophyOutline,
  UsbOutline,
  UserOutline,
  WeiboCircleOutline
];