无法定义服务。 Factory缺少类型的以下属性缺少类型'TypeProvider'的以下属性

Question

我正在将表单验证器注入服务。我有article

的以下代码

/**
 * Error formaters.
 */
export const defaultErrors = {
  required: (error: any): string => `This field is required.`,
  minlength: ({requiredLength, actualLength}): string => {
    return `Expect ${requiredLength} but got ${actualLength}`;
  }
};

/**
 * Error formaters injected.
 */
export const FORM_ERRORS = new InjectionToken('FORM_ERRORS', {
  // providedIn: 'root',
  factory: () => defaultErrors
});

它会产生错误。

 is missing the following properties from type 'TypeProvider': apply, call, bind, prototype, and 5 more.

我了解我需要仔细阅读文档...仍然无法解决。

Answer 1

对不起，问题很幼稚。我以这种方式注入。

@inject(FORM_ERRORS) private errors,

右边是大写字母 I

@Inject(FORM_ERRORS) private errors,