VS2008+ObjectARX2010调试问题

johnzhouxi

我用向导建了一个最简单的objectarx程序，编译通过。可是在调试的时候系统给我提示
Windows has triggered a breakpoint in acad.exe.

This may be due to a corruption of the heap, which indicates a bug in acad.exe or any of the DLLs it has loaded.

This may also be due to the user pressing F12 while acad.exe has focus.

The output window may have more diagnostic information.

我只得点确认，而且这个对话框会出现4次，再后进入AutoCAD2010主程序。在加载应用程序里面没有看到我的.arx的文件，而且在程序中的断点也自动消失，查看的信息是

The breakpoint will not currently be hit.No symbols have been loaded for this document.

什么原因？高手帮着解答一下，万分感谢！