TypeError: undefined is not an object (evaluating 'this.medias.toArray()[0].elem')<div> <video [vgHls]="url" id="singleVideo" controls crossorigin> </vg-player>
&
Stack vg_kvm/lvpool:0[0] on LV vg_kvm/lvpool_tdata:0.Adding vg_kvm/lvpool:0 as an user of vg_kvm/lvpool_tdata.Adding vg_kvm/lvpool:0 as an user of vg_kvm/lvpool_tmeta.Adding vg_kvm/vsv11999-dm9oryxunpw8
linqpad中测试了它,它成功了,但是它在EF Core 3.1中不工作: group v by v.AccountId into vgjoin bp in Parties on vg.FirstOrDefault().AccountId equals bp.AccountId { key = vg.Key,
Creditor = vg.Sum(v => v