DLL调试中断点失效的问题

    用VS2008编写了一个DLL工程，打算加上application进行调试，结果点下F5，DLL工程中的所有断点都被禁掉了，显示如下：

 

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

 

   在网上搜了一下有没有找到合适的结果，自己瞎折腾倒是折腾出来了，再搜，找到了合适的结果，总结如下：

 

 

   原因

 

  DLL工程中的pdb文件的时间戳与application路径下的dll文件的时间戳不一致。即当DLL工程新编译后，没有将工程下的新编译的dll文件拷贝至application路径下，使得application路径下的dll文件仍然为旧的。

 

  解决办法

 

  1. 将application exe拷贝至DLL功能debug目录下，这样就不会发生上述情况。

或

  2. 在每次新编译dll后及时更新application路径下的dll文件。

 

  顺带附上在网上找到的一个英文解决办法，没看太懂，是C#，不过道理估计是相通的。

 

two projects, the first one (A) calls the second (B) as a .dll .Both are projects for PocketPC (Smart device applications).
When i set a Breakpoint in the code of B it looks OK but when i Debug Question Mark appears with the infamous

note: The Breakpoint will not currently be hit. No Symbols have been loaded for this document.

The B.pdb has a timestamp different from B.dll and THIS is the problem. You have to DELETE B.pdb NOT ONLY from the Debug/bin directory because THERE IS ANOTHER COPY of this B.pdb in the obj directory and you CAN'T touch this copy so easily. So here is the complete walkthrough:

1) For your project set "Generate DEBUG information" to FALSE
2) DELETE ALL the occurences of B.pdb under /bin and /obj
3) Set "Generate DEBUG information" back to TRUE
4) BUILD


Between 2 and 3 I also built once but i think this is not necessary.

Now my pdb and dll have the same timestamp and all is working perfectly