angular7.x ViewDestroyedError：尝试使用已破坏的视图：detectChanges

Question

i使用Angular7.x和ngx-bootstrap折叠和下拉列表

<li>
                    <a data-class="prefix prefix-circle" (click)="isCollapsed = !isCollapsed" [attr.aria-expanded]="!isCollapsed"
                        aria-controls="collapseBasic">title <span class="icon"></span>
                    </a>
                    <div id="collapseBasic" class="collapse-basic" [collapse]="isCollapsed" [isAnimated]="true">
                        <div class="collapse-basic-show">
                            <ul>
                                <li>
                                    <a routerLink="/"</a>
                                </li>
                                <li role="menuitem" dropdown triggers="" placement="right" container="body">
                                    <a dropdownToggle class="dropdown-item dropdown-toggle" (click)="(true)">other title <span
                                            class=" icon"></span></a>
                                    <ul *dropdownMenu class="dropdown-menu" role="menu">
                                        <li *ngFor="let item of Data" role="menuitem">
                                            <a routerLink="/account"></a>
                                        </li>
                                    </ul>
                                </li>
                            </ul>
                        </div>
                    </div>
                </li>

当我单击页边距时，控制台将不断报告错误。 谁能告诉我发生了什么事