Javascript 忽略时背景值无效的警告。棱角分明

我有angular 4应用程序，它在本地机器上运行良好，带有

ng server

，但当我尝试使用

ng build--prod

为生产构建一个应用程序时，我得到的是低于错误的结果，而不是生产运行的错误。错误是：-

WARNING in Invalid background value at 12864:14. Ignoring.

完全详细错误

ERROR in : Type ModalsComponent in E:/Projects/Rudram Admin/Code/app/src/app/pages/ui-features/modals/modals.component.ts is part of the declarations 
of 2 modules: JobListModdule in E:/Projects/Rudram Admin/Code/app/src/app/pages/joblist/joblist.module.ts and UiFeaturesModule in E:/Projects
/Rudram Admin/Code/app/src/app/pages/ui-features/ui-features.module.ts! Please consider moving ModalsComponent in E:/Projects/Rudram Admin/Code
/app/src/app/pages/ui-features/modals/modals.component.ts to a higher module that imports JobListModdule in E:/Projects/Rudram Admin/Code/app/src
/app/pages/joblist/joblist.module.ts and UiFeaturesModule in E:/Projects/Rudram Admin/Code/app/src/app/pages/ui-features/ui-features.module.ts. You 
can also create a new NgModule that exports and includes ModalsComponent in E:/Projects/Rudram Admin/Code/app/src/app/pages/ui-features/modals
/modals.component.ts then import that NgModule in JobListModdule in E:/Projects/Rudram Admin/Code/app/src/app/pages/joblist/joblist.module.ts and
 UiFeaturesModule in E:/Projects/Rudram Admin/Code/app/src/app/pages/ui-features/ui-features.module.ts.

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注意->如果我只是简单地使用

ng build

，那么它不会抛出任何错误，但在这种情况下，应用程序需要很长时间才能加载–大约5到6分钟。

因此错误是

ModalsComponent

（

modals.component.ts

）在两个模块中声明。modals.component.ts是声明的一部分 共2个模块：JobListModule。。。和UiFeaturesModule

因此，最好还是创建一个共享模块并在那里导入ModalsComponent，正如错误所示

您还可以创建一个新的NgModule，该模块在E:/Projects/Rudram Admin/Code/app/src/app/pages/ui features/modals中导出并包含ModalsComponent
/modals.component.ts然后在E:/Projects/Rudram Admin/Code/app/src/app/pages/joblist/joblist.module.ts和
uifeatures模块在E:/Projects/Rudram Admin/Code/app/src/app/pages/ui features/ui features.module.ts.中直接从文档中获取