调用makeGroupMembership报错

[dengrun]

错误如下：
Unhandled Rejection (TypeError): this.attrs.members.forEach is not a function
UserGroup.makeGroupMembership
H:/Blockstack_demo/node_modules/_radiks-gavin-test@0.2.6@radiks-gavin-test/lib/models/user-group.js:148
UserGroupList.inviteToGroup
H:/Blockstack_demo/src/UserGroupList.js:77
74 |
75 | group.privateKey = groupRecord.Key
76 | console.log(group)

77 | const invitation = await group.makeGroupMembership(this.state.inviteId)
| ^ 78 | console.log(invitation)
79 | this.setState({invitationID:invitation._id})
80 | /*

下载feature-radiks-userGroup后测试，也同样报这个错误
以下是数据库中记录截图