AuthenticationType是authType属性的枚举。请改用AuthenticationOptions。例如：
我在Angular中使用Azure地图，遇到了一个错误，我似乎找不到解决方案。根据在线的azures文档和示例，这似乎是正确的。无论如何，我授权我的azures订阅的代码如下
authOptions: {
authType: 'subscriptionKey',
subscriptionKey: this.key
}
当我运行我的angular应用程序时，它成功地编译了，但给了我一个错误，如下
ERROR in src/app/azureMap/azureMap.component.ts:34:9 - error TS2322: Type '"subscriptionKey"' is not assignable to type 'AuthenticationType'.
34 authType: 'subscriptionKey',
~~~~~~~~
node_modules/azure-maps-control/typings/index.d.ts:4071:9
4071 authType?: AuthenticationType;
~~~~~~~~
The expected type comes from property 'authType' which is declared here on type 'AuthenticationOptions'
authOptions: AuthenticationOptions = {
authType: <AuthenticationType>'subscriptionKey',
subscriptionKey: this.key
}