我的程序别人用PB9.0修改后我现在用8.0打开时出现
the file exam.pbt should be removed
然后打开的workspace里就变成空的了，什么也没有。我又用9.0打开后，workspace中的东西都在，但是无法打开其中的一个窗口，弹出
open of window w_output3 failed.it has been migrated to current version format,but must also be successfully regenerated.
在运行时触发那个窗口时，弹出
object file w_output3 is out of date,must be converted to current version at line 1 in clicked event of object cb_output of w_list
请问各位知道是什么原因吗，应如何解决
