我尝试创建服务,但是当我尝试添加任何可观察项时,会引发以下错误,Property 'map' is missing in type 'Observable<any[]>'.
以下是我的服务
import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import { environment } from 'environments/environment';
import { Observable } from 'apollo-client/util/Observable';
import { catchError } from 'rxjs/operators';
import { throwError } from 'rxjs';
@Injectable({
providedIn: 'root'
})
export class TestService {
protected apiURL = 'http://localhost:3000';
constructor(private http: HttpClient) {}
getTestCount(): Observable<any[]> {
return this.http
.get<any[]>(`${this.apiURL}/test-count`)
.pipe(
catchError(err => {
return throwError(new Error(err));
})
);
}
}
答案 0 :(得分:6)
这可能是来自的错误
apollo-client/util/Observable
库。
您可能正在寻找以下导入
import { Observable } from 'rxjs/Observable';
对于rxjs 6 +
import { Observable } from 'rxjs';