Angular开发问题：Uncaught Error: Component UserComponent is not part of any NgModule

末蓝、 2021-09-28 04:10 119阅读 0赞

# Angular开发问题：Uncaught Error: Component UserComponent is not part of any NgModule #

## 异常问题: ##

用angular开发项目时候比较常见错误，打开浏览器，页面刷新不出来，控制台报错：

Uncaught Error: Component UserComponent is not part of any NgModule or the module has not been imported into your module.  
at JitCompiler.push…/node\_modules/@angular/compiler/fesm5/compiler.js.JitCompiler.\_createCompiledHostTemplate (vendor.js:62394)  
at vendor.js:62370  
at Array.forEach ()  
at vendor.js:62367  
at Array.forEach ()  
at JitCompiler.push…/node\_modules/@angular/compiler/fesm5/compiler.js.JitCompiler.\_compileComponents (vendor.js:62356)  
at vendor.js:62284  
at Object.then (vendor.js:39005)  
at JitCompiler.push…/node\_modules/@angular/compiler/fesm5/compiler.js.JitCompiler.\_compileModuleAndComponents (vendor.js:62283)  
at JitCompiler.push…/node\_modules/@angular/compiler/fesm5/compiler.js.JitCompiler.compileModuleAsync (vendor.js:62243)

## 错误原因： ##

访问对应url时候，UserComponent 没有在NgModule 导入配置中，浏览器找不到组件造成。

## 解决办法： ##

将UserComponent加入到AppModulel类中，刷新页面即可。

@NgModule({ 
      declarations: [
        AppComponent,
        LoginComponent,
        PageNotFoundComponent,
        IndexComponent,
        MainComponent,
        LeftNavComponent,
        LeftMenuClickPopup,
        ManpowerInputComponent,
        ManpowerAddComponent,
        ManpowerUserlistComponent,
        UserDialogComponent,
        UserComponent,
        RoleComponent,
        RightComponent
      ],