我打开ADS以后建立一个工程以后,再建一个文件,但是怎么也加不到这个工程里,具体的是我选择新建File,然后在Add to Proje前面打钩,在下面的Targets里选择Debug,DebugRel,Release,确定以后显示错误信息为:File 'myled' could not be added to any of the selected targets.You can loot at the targets file mappings preference to see what file types it accepts.