Microsoft Access:无法添加记录; 'Computer' 的连接键不在记录集中

Microsoft Access: Cannot add record (s); join key of 'Computer' not in recordset

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数据库形式:此处:

所以问题是当我从 "Client's name" 字段输入数据到 "Phone number" 字段时一切正常,但是当我尝试在 "Manufacturer" 字段中输入数据时,它说:Microsoft Access: Cannot add record(s); join key of 'Computer' not in recordset.

您的表单上没有现场计算机。