感谢所有帮助-事实证明这是WiX问题.

Thanks all for the help - turns out it was a WiX issue.

当产品ID GUID保留为显式&时，按照问题进行硬编码，当使用orca检查时，生成的.msi不具有ProductCode属性，而具有Product ID属性.

When the Product ID GUID was left explicit & hardcoded as in the question, the resulting .msi had no ProductCode property but a Product ID property instead when inspected with orca.

一旦我将GUID更改为"*"以自动生成，就会显示ProductCode，并且在其他答案确认的语法下都可以正常工作.

Once I changed the GUID to '*' to auto-generate, the ProductCode showed up and all works fine with syntax confirmed by the other answers.