ngzorro draw 第一次打开 ERROR TypeError: Cannot read property 'overlayElement' of undefined

at NzDrawerComponent.push../node_modules/ng-zorro-antd/fesm5/ng-zorro-antd.js.NzDrawerComponent.trapFocus (ng-zorro-antd.js:18330)
at NzDrawerComponent.push../node_modules/ng-zorro-antd/fesm5/ng-zorro-antd.js.NzDrawerComponent.ngOnChanges (ng-zorro-antd.js:18149)
at checkAndUpdateDirectiveInline (core.js:9239)
at checkAndUpdateNodeInline (core.js:10507)
at checkAndUpdateNode (core.js:10469)
at debugCheckAndUpdateNode (core.js:11102)
at debugCheckDirectivesFn (core.js:11062)
at Object.eval [as updateDirectives] (NewApplicationComponent.html:1)
at Object.debugUpdateDirectives [as updateDirectives] (core.js:11054)
at checkAndUpdateView (core.js:10451)
报错如下，经验证后发现　只能

<nz-drawer [nzClosable]="true" [nzVisible]="visible" nzPlacement="left" [nzWidth]='width' nzMask='false'

(nzOnClose)="close()">

<app-threat-detail *ngIf='riskId' [inputThreatId]="riskId"></app-threat-detail>

</nz-drawer>

1.不能在嵌套组件内在包含drawer

2.如果按钮唤醒抽屉打开，那么按钮和抽屉得在同一个组件中　

不然就会报错。