Repeating side navbar inner list elements about sb-admin-bs4-angular-8

[juananinca]

I had the same problem. Just edit your _app-base.scss located in the assets/sass/ folder as I show you:

.nested-menu {
    .list-group-item {
        cursor: pointer;
    }
    .nested {
        list-style-type: none;
    }
    ul.submenu {
        height: 0;
    }
    & .expand {
        ul.submenu {
            list-style-type: none;
            height: auto;
            li {
                a {
                    color: #FFFFFF;
                    padding: 10px;
                    display: block;
                }
            }
        }
    }
  & .hidden {
    visibility: hidden;
  }
}

then you must edit each div menu in the typescript file sidebar.ts in the following way:

<div class="nested-menu">
            <a class="list-group-item" (click)="addExpandClass('pages')">
                <span><i class="fa fa-plus"></i> &nbsp; Menu</span>
            </a>
            <li class="nested" [ngClass]="{'expand' : showMenu === 'pages',  hidden: showMenu !== 'pages' }">
                <ul class="submenu">
                    <li>
                        <a href><span>Submenu</span></a>
                    </li>
                    <li>
                        <a href><span>Submenu</span></a>
                    </li>
                </ul>
            </li>
        </div>

And that's all! :)