Could you tell me how to use loadChildren?

I wrote the route in app-routing.module.ts:
{

    path: "about",
    component: AboutComponent,
    children: [
        {
            path: "about/componyinstroduction",
            loadChildren: "../pages/about/about.module-sharpComponyinstroductionComponent"
        },
        {
            path: "about/teaminstroductionComponent",
            loadChildren: "../pages/about/about.module-sharpTeaminstroductionComponent"
        },
        {
            path: "about/honourComponent",
            loadChildren: "../pages/about/about.module-sharpHonourComponent"
        },
        {
            path: "about/structureComponent",
            loadChildren: "../pages/about/about.module-sharpStructureComponent"
        },
        {
            path: "about/structureComponent",
            loadChildren: "../pages/about/about.module-sharpStructureComponent"
        },
    ]
    
    html:

clipboard.png
:

clipboard.png

so there is still something wrong with my route. Please take a look at it. Thank you very much

.
Angular5
Feb.20,2022

restart seems to be the right thing to do. Thank you

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