无法绑定到“纬度”，因为它不是“agm-map”的已知属性

【问题标题】：Can't bind to 'latitude' since it isn't a known property of 'agm-map'无法绑定到“纬度”，因为它不是“agm-map”的已知属性
【发布时间】：2017-10-13 14:41:46
【问题描述】：

我正在尝试将 AGM Angular Google Maps (https://github.com/SebastianM/angular-google-maps) 添加到我的 Angular4 项目中

遵循的指南：https://github.com/SebastianM/angular-google-maps/blob/master/docs/getting-started.jade

我在访问带有 agm 组件的页面时遇到的错误：

core.es5.js:1084 ERROR Error: Uncaught (in promise): Error: Template parse errors:
Can't bind to 'latitude' since it isn't a known property of 'agm-map'.
1. If 'agm-map' is an Angular component and it has 'latitude' input, then verify that it is part of this module.
2. If 'agm-map' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.
3. To allow any property add 'NO_ERRORS_SCHEMA' to the '@NgModule.schemas' of this component. ("th:100%;height:auto;" src="/assets/common/images/live-demo.png">-->

                    <agm-map [ERROR ->][latitude]="lat" [longitude]="lng">
                    <!--<agm-map-marker [latitude]="lat" [longit"): ng:///MainModule/SiteMapComponent.html@22:29
Can't bind to 'longitude' since it isn't a known property of 'agm-map'.
1. If 'agm-map' is an Angular component and it has 'longitude' input, then verify that it is part of this module.
2. If 'agm-map' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.
3. To allow any property add 'NO_ERRORS_SCHEMA' to the '@NgModule.schemas' of this component. ("to;" src="/assets/common/images/live-demo.png">-->

                    <agm-map [latitude]="lat" [ERROR ->][longitude]="lng">
                    <!--<agm-map-marker [latitude]="lat" [longitude]="lng"></agm-"): ng:///MainModule/SiteMapComponent.html@22:46
'agm-map' is not a known element:
1. If 'agm-map' is an Angular component, then verify that it is part of this module.
2. If 'agm-map' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message. ("tyle="width:100%;height:auto;" src="/assets/common/images/live-demo.png">-->

                    [ERROR ->]<agm-map [latitude]="lat" [longitude]="lng">
                    <!--<agm-map-marker [latitude]="lat"): ng:///MainModule/SiteMapComponent.html@22:20
Error: Template parse errors:
Can't bind to 'latitude' since it isn't a known property of 'agm-map'.
1. If 'agm-map' is an Angular component and it has 'latitude' input, then verify that it is part of this module.
2. If 'agm-map' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.
3. To allow any property add 'NO_ERRORS_SCHEMA' to the '@NgModule.schemas' of this component. ("th:100%;height:auto;" src="/assets/common/images/live-demo.png">-->

                    <agm-map [ERROR ->][latitude]="lat" [longitude]="lng">
                    <!--<agm-map-marker [latitude]="lat" [longit"): ng:///MainModule/SiteMapComponent.html@22:29
Can't bind to 'longitude' since it isn't a known property of 'agm-map'.
1. If 'agm-map' is an Angular component and it has 'longitude' input, then verify that it is part of this module.
2. If 'agm-map' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.
3. To allow any property add 'NO_ERRORS_SCHEMA' to the '@NgModule.schemas' of this component. ("to;" src="/assets/common/images/live-demo.png">-->

                    <agm-map [latitude]="lat" [ERROR ->][longitude]="lng">
                    <!--<agm-map-marker [latitude]="lat" [longitude]="lng"></agm-"): ng:///MainModule/SiteMapComponent.html@22:46
'agm-map' is not a known element:
1. If 'agm-map' is an Angular component, then verify that it is part of this module.
2. If 'agm-map' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message. ("tyle="width:100%;height:auto;" src="/assets/common/images/live-demo.png">-->

                    [ERROR ->]<agm-map [latitude]="lat" [longitude]="lng">
                    <!--<agm-map-marker [latitude]="lat"): ng:///MainModule/SiteMapComponent.html@22:20
    at syntaxError (http://localhost:4200/vendor.bundle.js:107191:34) [angular]
    at TemplateParser.parse (http://localhost:4200/vendor.bundle.js:117682:19) [angular]
    at JitCompiler._compileTemplate (http://localhost:4200/vendor.bundle.js:131433:39) [angular]
    at http://localhost:4200/vendor.bundle.js:131357:62 [angular]
    at Set.forEach (native) [angular]
    at JitCompiler._compileComponents (http://localhost:4200/vendor.bundle.js:131357:19) [angular]
    at createResult (http://localhost:4200/vendor.bundle.js:131242:19) [angular]
    at Object.onInvoke (http://localhost:4200/vendor.bundle.js:4535:37) [angular]
    at http://localhost:4200/polyfills.bundle.js:5617:57 [angular]
    at Object.onInvokeTask (http://localhost:4200/vendor.bundle.js:4526:37) [angular]
    at syntaxError (http://localhost:4200/vendor.bundle.js:107191:34) [angular]
    at TemplateParser.parse (http://localhost:4200/vendor.bundle.js:117682:19) [angular]
    at JitCompiler._compileTemplate (http://localhost:4200/vendor.bundle.js:131433:39) [angular]
    at http://localhost:4200/vendor.bundle.js:131357:62 [angular]
    at Set.forEach (native) [angular]
    at JitCompiler._compileComponents (http://localhost:4200/vendor.bundle.js:131357:19) [angular]
    at createResult (http://localhost:4200/vendor.bundle.js:131242:19) [angular]
    at Object.onInvoke (http://localhost:4200/vendor.bundle.js:4535:37) [angular]
    at http://localhost:4200/polyfills.bundle.js:5617:57 [angular]
    at Object.onInvokeTask (http://localhost:4200/vendor.bundle.js:4526:37) [angular]
    at resolvePromise (http://localhost:4200/polyfills.bundle.js:5569:31) [angular]
    at resolvePromise (http://localhost:4200/polyfills.bundle.js:5540:17) [angular]
    at http://localhost:4200/polyfills.bundle.js:5617:17 [angular]
    at Object.onInvokeTask (http://localhost:4200/vendor.bundle.js:4526:37) [angular]
    at drainMicroTaskQueue (http://localhost:4200/polyfills.bundle.js:5450:35) [<root>]
    at <anonymous> [<root>]

我已经确定/试过了；

  • 我的模块导入AgmCoreModule
  • 在我的模块中向 SCHEMAS 添加了 CUSTOM_ELEMENTS_SCHEMA（这没有效果）
  • 将 lat/lng 值绑定到文字整数

我的站点地图.component.ts：

import { Component, AfterViewInit, Injector, ViewEncapsulation, ViewChild, trigger, transition, style, animate, state,  } from '@angular/core';
import { Router, ActivatedRoute, Params } from '@angular/router';
import { Http } from '@angular/http';
import { Observable } from 'rxjs/Observable';
import { NotifyService } from '@abp/notify/notify.service';
import { AppConsts } from '@shared/AppConsts';
import { AppComponentBase } from '@shared/common/app-component-base';
import { appModuleAnimation } from '@shared/animations/routerTransition';
import * as moment from "moment";
import { JTableHelper } from '@shared/helpers/JTableHelper';
import { AgmMap, AgmMarker } from '@agm/core';

 var google: any; 

@Component({

    templateUrl: 'site-map.component.html',
    animations: [appModuleAnimation()]
})
export class SiteMapComponent extends AppComponentBase {


 title: string = 'My first AGM project';
      lat: number = 51.678418;
      lng: number = 7.809007;

    constructor(
        injector: Injector
    )
    {
        super(injector);
    }

}

我的站点地图.component.html

<agm-map [latitude]="lat" [longitude]="lng">
                    <agm-map-marker [latitude]="lat" [longitude]="lng"></agm-map-marker>
                    </agm-map>

我的 app.module.ts

import { NgModule, APP_INITIALIZER } from '@angular/core';
import * as ngCommon from '@angular/common';
import { FormsModule } from '@angular/forms';
import { HttpModule, JsonpModule } from '@angular/http';

import { ModalModule, TooltipModule } from 'ngx-bootstrap';
import { FileUploadModule } from '@node_modules/ng2-file-upload';

import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';

import { HeaderComponent } from './shared/layout/header.component';
import { HeaderNotificationsComponent } from './shared/layout/notifications/header-notifications.component';
import { SideBarComponent } from './shared/layout/side-bar.component';
import { FooterComponent } from './shared/layout/footer.component';

import { LoginAttemptsModalComponent } from '@app/shared/layout/login-attempts-modal.component';
import { ChangePasswordModalComponent } from '@app/shared/layout/profile/change-password-modal.component';
import { ChangeProfilePictureModalComponent } from '@app/shared/layout/profile/change-profile-picture-modal.component';
import { MySettingsModalComponent } from '@app/shared/layout/profile/my-settings-modal.component';

import { AbpModule, ABP_HTTP_PROVIDER } from '@abp/abp.module';

import { UtilsModule } from '@shared/utils/utils.module';
import { AppCommonModule } from './shared/common/app-common.module';
import { ServiceProxyModule } from '@shared/service-proxies/service-proxy.module';

import { API_BASE_URL } from '@shared/service-proxies/service-proxies';
import { AppConsts } from '@shared/AppConsts';

import { AppSessionService } from '@shared/common/session/app-session.service';
import { ImpersonationService } from './admin/users/impersonation.service';
import { LinkedAccountService } from './shared/layout/linked-account.service';
import { LinkedAccountsModalComponent } from '@app/shared/layout/linked-accounts-modal.component';
import { LinkAccountModalComponent } from '@app/shared/layout/link-account-modal.component';
import { NotificationsComponent } from './shared/layout/notifications/notifications.component';
import { NotificationSettingsModalCompoent } from './shared/layout/notifications/notification-settings-modal.component';
import { UserNotificationHelper } from './shared/layout/notifications/UserNotificationHelper';
import { ChatBarComponent } from './shared/layout/chat/chat-bar.component';
import { ChatFriendListItem } from './shared/layout/chat/chat-friend-list-item.component';
import { ChatSignalrService } from '@app/shared/layout/chat/chat-signalr.service';
import { QuickSideBarChat } from '@app/shared/layout/chat/QuickSideBarChat';
import { TabsModule } from 'ngx-bootstrap/tabs';
import { AngularFireModule } from 'angularfire2';
import { AngularFireDatabaseModule, AngularFireDatabase, FirebaseListObservable } from 'angularfire2/database';
import { AngularFireAuthModule, AngularFireAuth } from 'angularfire2/auth';
import { environment } from '../environments/environment';
import { AgmCoreModule } from '@agm/core';


@NgModule({
    declarations: [
        AppComponent,
        HeaderComponent,
        HeaderNotificationsComponent,
        SideBarComponent,
        FooterComponent,
        LoginAttemptsModalComponent,
        LinkedAccountsModalComponent,
        LinkAccountModalComponent,
        ChangePasswordModalComponent,
        ChangeProfilePictureModalComponent,
        MySettingsModalComponent,
        NotificationsComponent,
        ChatBarComponent,
        ChatFriendListItem,
        NotificationSettingsModalCompoent,

    ],
    imports: [
        ngCommon.CommonModule,
        FormsModule,
        HttpModule,
        JsonpModule,
        TabsModule.forRoot(),
        ModalModule.forRoot(),
        TooltipModule.forRoot(),
        FileUploadModule,
        AbpModule,
        AppRoutingModule,
        UtilsModule,
        AppCommonModule.forRoot(),
        ServiceProxyModule,
        AngularFireModule.initializeApp(firebaseConfig, 'my-app'),
        AngularFireDatabaseModule,
        AngularFireAuthModule,
         AgmCoreModule.forRoot({
          apiKey: 'YOUR_KEY'
        })
    ],
    providers: [
        ImpersonationService,
        LinkedAccountService,
        UserNotificationHelper,
        ChatSignalrService,
        QuickSideBarChat
    ]
})
export class AppModule { }

非常感谢任何帮助。

【问题讨论】：

  • 你能附上你的NgModule定义吗？
  • 对我来说似乎没问题。 SiteMapComponent 有他自己的模块 还是父亲 module？如果是这样，请尝试在其上导入AgmCoreModule（不带 .forRoot() since you've already imported it in AppModule。
  • No SiteMapComponent 没有它自己的模块或父模块，我会尝试导入 AgmCoreModule 看看是否可行。谢谢。
  • @developer033 将 AgmCoreModule 导入我的 SiteMapComponent 时出现同样的错误。

标签： angular angular-google-maps


【解决方案1】：

此错误仅在您有用于实现地图的组件的子模块时发生， 因此，您也需要在没有 forRoot()

的情况下将该模块添加到您的子模块中

app.module.ts

import { AgmCoreModule } from '@agm/core';

@NgModule({
 imports: [
    AgmCoreModule.forRoot({
      apiKey: ''
   })
  ]
})

child.module.ts 

import { AgmCoreModule } from '@agm/core';

@NgModule({
 imports: [
    AgmCoreModule
  ]
})

这会正常工作，因为现在子模块具有 AgmCoreModule

【讨论】：

    【解决方案2】：

    感谢@developer033，我解决了我的问题，我已将 Angular Google Maps 导入到我的 app.module 中，但它需要位于 main.module 中，而不是我通过组件实际使用它的位置。

    【讨论】：

    • In your comment 你说该组件没有它自己的模块或父模块（app.module 除外）。你是说你必须创造一个？
    • 嗨，不，我从未创建过另一个模块，我只是将声明移至直接使用该组件的模块。例如，如果您有应用程序模块和继承应用程序的主模块，如果您直接使用您放置导入的主模块中的组件。
    【解决方案3】：

    感谢plotoshas 在issues 71 中的回答，您必须通过以下方式利用 angular 2 CUSTOM_ELEMENTS_SCHEMA：

    import { NgModule, CUSTOM_ELEMENTS_SCHEMA } from '@angular/core';

// ...

@NgModule({
  // ...
  schemas:  [ CUSTOM_ELEMENTS_SCHEMA ]
})
export class AppModule { }

    【讨论】：

      【解决方案4】：

      对于可能创建了 app.routing.ts 文件的任何人，需要在此处声明导入，而不是在您的 app.module.ts 文件中声明。 

      @NgMoudule ({ 
declarations: [ALLOTHERCOMPONENTS],
imports: [
    CommonModule,
    RouterModule.forRoot(appRoutes),
    AgmCoreModule.forRoot({
        apiKey: '*'
      }),
    ], 
})

      【讨论】：

      • 两者都声明可以吗？还有“ALLOTHERCOMPONENTS”部分。你是说如果你在你的 Angular 项目中包含路由，你应该在 app-routing.module 而不是 app.module 中声明你的所有组件？还是两个地方？
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