导入smdk2440后，接着导入mini2440.pbxml文件的时候。弹出来，One or more BSP's that are
not installed were found in the selected Platform Builder project file.
The configurations will be grayed out in the configuration combobox.
这是为什么啊 ？我之前明明已经导入BSP了，编译菜单都是灰色的，不能用，问题出在哪呢？我是按着说明书做的啊
请大家高手指点一下吧
