IONIC 4.2.1 and Angular 6 Errors.
my project running good until recently i had added environment file,
named dev environment.dev.ts since below error is haunting me.
离子发球出现波纹管错误--prod-env=--prod命令，其中离子发球工作正常。
在/Users/aniket/projects/ionic4-angular6-crud/src/app/home/home.page.ts中键入主页时出错。这是两个模块声明的一部分：在/Users/saniket/proprojects/ionic4-angular6-grud/src-app/app.module.ts中的AppModule和在/Users/aniket/projects/ionic4-agular6-crud/src/app/home.module_ts中的HomePageModule！请考虑将/Users/aniket/projects/ionic4-angular6-crud/src/app/home/home.page.ts中的主页移动到更高的模块，该模块在/Users/aniket/projects/src/app/app.module.ts中导入AppModule，在/Users/aniket/products/ionic4-angular 6-crud-src/app/home.module_ts中导入HomePageModule。您还可以创建一个新的NgModule，该模块将主页导出并包含在/然后，Users/aniket/projects/ionic4-angular6-crud/src/app/home.page.ts在/Users/aniket/projects/src/app/app.module.ts中的AppModule中导入NgModule，并在/Users/aniket/products/ionic4-angular6-crud/src/app/home.module_ts中导入HomePageModule
由于错误表明您已在两个模块中声明了主页，如AppModule和HomePageModule。
将其从AppModule中删除