错误信息：Error:(21, 3) TS1219: Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option in your 'tsconfig' or 'jsconfig' to remove this warning.
解决方案：在项目根目录新建 jsconfig.json 文件，写入一下内容，重启开发工具即可。
{"compilerOptions": {"experimentalDecorators": true}
}