public override async Task Create(CreateRoleDto input)

{

    CheckCreatePermission();

    var role = ObjectMapper.Map<Role>(input);

    CheckErrors(await _roleManager.CreateAsync(role));

    var grantedPermissions = PermissionManager

                .GetAllPermissions()

                .Where(p => input.Permissions.Contains(p.Name))

                .ToList();

    //加上下面代码

    //await CurrentUnitOfWork.SaveChangesAsync();

    await UnitOfWorkManager.Current.SaveChangesAsync(); //这行是后来加的不晓得拼写错误没有，有错自己修正，反正大概是这样

    await _roleManager.SetGrantedPermissionsAsync(role, grantedPermissions);

    return MapToEntityDto(role);

}