Debugging Dll's in Delphi in BPG

I am debugging a bpg with multiple dll's. Can someone tell me why my breakpoints, that DO work, eventually stop working? The only way to get them back is to do a build all in my project group file 开发者_如何学C(BPG file in Delphi 6)?

I have looked at several other posts, but have not had much luck getting an answer to this specific question. Again, I can successfully debug, all dll's in the BPG provided I do a build all. Doing a build all every time is taking too long.

I am using Delphi6 in WinXP.

Thank you

In Delphi 6, such a failure to find debug information (all the blue lines are gone from your sources) that is solved by a complete rebuild is usually a symptom that you have to examine your project (.dpr) settings. For each project (dll or exe) make sure a different unique compiler output folder (DCU output folder) is used.