我点击右面的欢迎按钮，然后运行第一个演示和范例程序：Keep in touch Example 结果提示找不到头文件，如下面所示：
D:\QtSDK\Examples\QtMobility\keepintouch-build-desktop-Qt_4_8_0_for_Desktop_-_MinGW__Qt_SDK____\..\keepintouch\addressfinder.h:43: 错误:qmessageservice.h: No such file or directory
D:\QtSDK\Examples\QtMobility\keepintouch-build-desktop-Qt_4_8_0_for_Desktop_-_MinGW__Qt_SDK____\..\keepintouch\addressfinder.cpp:43: 错误:qcontactdetailfilter.h: No such file or directory
D:\QtSDK\Examples\QtMobility\keepintouch-build-desktop-Qt_4_8_0_for_Desktop_-_MinGW__Qt_SDK____\..\keepintouch\addressfinder.cpp:44: 错误:qcontactemailaddress.h: No such file or directory
