Angular 8: ERROR Error: No component factory found

in your app.module.ts add below code :

import { SrapiComponent, SrapiTFLFormComponent } from './srapi/srapi.component';

@NgModule({
  declarations: [
    AppComponent,
    LoginComponent,
    HeaderComponent,
    FooterComponent,
    RegisterComponent,
    EdcUserFormComponent,
    SidebarComponent,
    EdcMasterDataComponent,
    SrapiComponent,
    SrapiTFLFormComponent
  ],
  imports: [
    BrowserModule,
.
. 
],
entryComponents: [
   SrapiTFLFormComponent
]

As the error says you need to add the component also inside of entryComponents.

@NgModule({
  declarations: [
    AppComponent,
    LoginComponent,
    HeaderComponent,
    FooterComponent,
    RegisterComponent,
    EdcUserFormComponent,
    SidebarComponent,
    EdcMasterDataComponent,
    SrapiComponent,
    SrapiTFLFormComponent
  ],
  imports: [
    BrowserModule,
    ...
  ],
 entryComponents: [SrapiTFLFormComponent]
 ...

To clarify what entryComponents are you can take a look here

An entry component is any component that Angular loads imperatively, (which means you’re not referencing it in the template), by type. You specify an entry component by bootstrapping it in an NgModule, or including it in a routing definition.