问题描述
我有一个库,其中有一个模块和两个组件。其中一个组件需要使用服务(并传入了一个配置-在将服务添加到构造函数之前,该配置已起作用)。
ERROR Error: Uncaught (in promise): Error: This constructor was not compatible with Dependency Injection.
Error: This constructor was not compatible with Dependency Injection.
at Module.ɵɵinvalidFactory (core.js:13777)
at NodeInjectorFactory.QrCodeService_Factory [as factory] (qr-code.service.ts:26)
at getNodeInjectable (core.js:4029)
at searchTokensOnInjector (core.js:3965)
at getOrCreateInjectable (core.js:3887)
at Module.ɵɵdirectiveInject (core.js:13753)
at NodeInjectorFactory.QrCodeComponent_Factory [as factory] (qr-code.component.ts:21)
at getNodeInjectable (core.js:4029)
at instantiateRootComponent (core.js:7826)
at createRootComponent (core.js:18375)
at resolvePromise (zone-evergreen.js:798)
at resolvePromise (zone-evergreen.js:750)
at zone-evergreen.js:860
at ZoneDelegate.invokeTask (zone-evergreen.js:399)
at Object.onInvokeTask (core.js:27425)
at ZoneDelegate.invokeTask (zone-evergreen.js:398)
at Zone.runTask (zone-evergreen.js:167)
at drainMicroTaskQueue (zone-evergreen.js:569)
我想念什么吗?
服务(QrCodeService)装饰为:
@Injectable({
providedIn: 'any'
})
组件(QrCodeComponent)装饰有:
@Component({
providers: [
QrCodeService
]
})
以及组件的构造函数:
constructor(
@Inject(QR_LIB_CONFIG) qrLibConfig,private qrCodeService: QrCodeService
)
解决方法
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