请确保已正确配置ApolloProvider和HttpLink，并在执行查询时使用正确的语法。以下是一个示例：

app.module.ts：

import { ApolloModule, Apollo } from 'apollo-angular';
import { HttpLinkModule, HttpLink } from 'apollo-angular-link-http';

@NgModule({
  imports: [
    ApolloModule,
    HttpLinkModule,
    //其他的imports...
  ],
  //providers和其他的东西...
})
export class AppModule {
  constructor(apollo: Apollo, httpLink: HttpLink) {
    apollo.create({
      link: httpLink.create({uri: 'http://localhost:3000/graphql'}),
      cache: new InMemoryCache()
    });
  }
}

component.ts：

import { Apollo } from 'apollo-angular';
import gql from 'graphql-tag';

export class MyComponent {
  constructor(private apollo: Apollo) {}

  ngOnInit() {
    this.apollo.query({
      query: gql`
        query {
          someQuery {
            someField
          }
        }
      `
    }).subscribe(result => {
      console.log(result);
    });
  }
}