toBeTruthy(); }); }); 4. 验证问题是否解决 运行你的应用,确保没有再次出现 NullInjectorError 错误。 运行你的单元测试,确保测试通过且没有错误。 通过以上步骤,你应该能够解决 "NullInjectorError: No provider for HttpClient!" 错误。如果问题仍然存在,请检查是否有其他配置错误或代码问题。
1. 在 app.module.ts 中引入模块 import { HttpClientModule } from '@angular/common/http'; 2. 在 @NgModule.imports 中引入它 @NgModule({ ... imports: [ ... HttpClientModule, ... ], ... })
No provider for HttpClient Angular开发 Angular前端开发,浏览器控制台提示No provider for HttpClient 是写法不对,修改如下: app.module.js import中增加: import { HttpClientModule } from '@angular/common/http'; 1. @NgModule的imports中增加: imports: [ //.. HttpClientModule, //.. ] 1. 2. 3. 4...
5. 安卓系统运行Debian-7.0环境(Debian for android)(1499) 推荐排行榜 1. Ionic 中出现 NullInjectorError: No provider for HttpClient 的解决办法(1) 当前标签:No provider for HttpClientIonic 中出现 NullInjectorError: No provider for HttpClient 的解决办法 ...
通过深入理解和应用HttpClient和HttpClientFactory，开发人员可以更好地与外部服务进行通信。
Nested component (app-childin repo example) is compiled and therefore its injected services need to be mocked, so it's throwing an errorNo provider for HttpClient Please provide a link to a minimal reproduction of the bug https://github.com/lcecil-uw/standalone-tests ...
Hi @troyanskiy Just spent a couple of hours with a weird bug... angular-cli@1.0.0, latest versions of angular / ngx-resource-rest Error: No provider for e! // app.module.ts import { BrowserModule } from '@angular/platform-browser'; impor...
base address + relative address in HttpClient... what is full address? Base64 to tiff Best approach for launching an application (GUI) by a Windows Service Best code practice - multiple same name class names in different namespaces Best CSV file reader to Dictionary Best library to read any ...
MessageId: DTS_E_OLEDB_NOPROVIDER_ERROR MessageText: The requested OLE DB provider %2!s! is not registered. If the 32-bit driver is not installed, run the package in 64-bit mode. Error code: 0x%1!8.8X!.
Error: No provider for InjectionToken DocumentToken! 当前的的版本是 "@angular/common": "^4.4.7", 当我引用HttpClient的时候,会报这个错误! 已解决,是把你的package.json,里面的angular相关版本更新到4.3.0以上,版本最好都一致,不然某些包的引用可能会缺失,导致报错!!!