Type Component is part of the declarations of 2 modules:

[patou]

Describe the bug
The first time the component display well, but the second time, this error is displayed :

Unhandled Promise rejection: Type UserAccountComponent is part of the declarations of 2 modules: StorybookModule and StorybookModule! Please consider moving UserAccountComponent to a higher module that imports StorybookModule and StorybookModule. You can also create a new NgModule that exports and includes UserAccountComponent then import that NgModule in StorybookModule and StorybookModule. ; Zone: <root> ; Task: Promise.then ; Value: Error: Type UserAccountComponent is part of the declarations of 2 modules: StorybookModule and StorybookModule! Please consider moving UserAccountComponent to a higher module that imports StorybookModule and StorybookModule. You can also create a new NgModule that exports and includes UserAccountComponent then import that NgModule in StorybookModule and StorybookModule.

I had this error next this issues #14631

System

Environment Info:

System:
OS: Windows 10 10.0.18363
CPU: (8) x64 Intel(R) Core(TM) i7-8665U CPU @ 1.90GHz
Binaries:
Node: 12.11.1 - C:\PBapps\ctlm-myeclipse\nvm-1.1.7\nodejs\node.EXE
npm: 6.13.6 - C:\PBapps\ctlm-myeclipse\nvm-1.1.7\nodejs\npm.CMD
Browsers:
Edge: Spartan (44.18362.449.0)
npmPackages:
@storybook/addon-actions: ^6.2.8 => 6.2.8
@storybook/addon-essentials: ^6.2.8 => 6.2.8
@storybook/addon-links: ^6.2.8 => 6.2.8
@storybook/angular: ^6.2.8 => 6.2.8

Additional context
The UserAccountComponent.strory :

import { UserAccountComponent } from './user-account.component';
import { Story, Meta, moduleMetadata } from '@storybook/angular';
import { SharedModule } from '@/app/shared/shared.module';

export default {
  title: 'Atoms/User Account',
  component: UserAccountComponent,
  decorators: [
    moduleMetadata({
        imports: [SharedModule]
    })
  ]
} as Meta;

const Template: Story<UserAccountComponent> = (args: UserAccountComponent) => ({
  props: args
});

export const UserAccount = Template.bind({
  connected: false,
  template: `<mat-icon class="a-sid-user-account" matBadge="0" matBadgePosition="below" matBadgeColor="primary" matBadgeSize="small">
  account_circle
</mat-icon>`
});

[xavidram]

I had to downgrade to @storybook/angular 6.1.21 to get it to work. Problem now is that when I close vs-code and come back later and re run npm run storybook I get the same error again. Upon deleting the node modules and re-installing, @storybook/links-addon prompts me to select the version I would like to install, so I go down and select v6.1.21 and let it install. Then I ran run it again to get it working.

[shilman]

closing as dupe to #14026