项目中添加一个Library 工程,但是却无法加入WPF window, WPF customize control.
调查了一下,发现这一切都由于Library工程中没有:ProjectTypeGuids
Debug AnyCPU {072127C4-0CED-4FA8-8010-7A014E1BDF73} Library Properties Honeywell.OSM.AircraftManagement Honeywell.OSM.AircraftManagement v4.0 512 {60dc8134-eba5-43b8-bcc9-bb4bc16c2548};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC} Client
用Notepad++打开工程,加入ProjectTypeGuids,一切正常了。