芯片：stm32f103vb 开发工具：IAR FOR ARM 5.20
打开一个工程出现如下问题：
The project file 'GPIO.EWP' is in an old format。
Would you like to convert it for use with this version?
(The converted project will not work with older versions of EW,but a backup copy of the original file will be made.)
求高人指导？
