Angular 发生客户端或网络错误：无法读取未定义的属性（读取“viewContainerRef”）

Question

我使用以下 forkJoin 仅对可预览的附件进行预览调用。 canPreview 标志表明了这一点。

但是一旦我添加过滤器，它就会抛出以下错误。我没有在此组件中的任何地方使用 viewContaienrRef 。谁能帮助找出我在这里做错了什么？

'A client-side or network error occurred: Cannot read properties of undefined (reading 'viewContainerRef')'

    forkJoin(
            this.question.attachments
            .filter(attachment => attachment.canPreview) //error after adding this line
            .map((attachment) => {
                const { fileName, attachmentId, canPreview } = attachment;
                const attachmentUploadResult: AttachmentUploadResult = {
                    fileName,
                    attachmentId,
                    canPreview
                };
                return this.uploadService.getBlob(attachmentId).pipe(
                        map((blob) => {
                            return {
                                fileName,
                                attachmentId,
                                imageURL: this.sanitizer.bypassSecurityTrustUrl(
                                    URL.createObjectURL(blob)
                                ),
                                canPreview
                            } as AttachmentUploadResult;
                        }),
                        catchError(() =>
                            of(attachmentUploadResult)
                        )
                    );
            })
        )

谢谢