After attaching to the process, the breakpoint displays "currently will not hit the breakpoint, and no symbols have been loaded for this document"

terms of settlement ：

1. Turn off the exe file

2. open bcompare, Will regenerate dll File copy to exe Of documents bin Inside the directory

3. Reopen exe file , Reattach to process

reason ： Regenerated pdb file , Cover the original . 

pdb and dll The relationship of documents ：

https://blog.csdn.net/zam183/article/details/88719587

It's written in ：pdb Document and dll The documents are matched , That is to say, once dll The file has changed （ For example, regenerate ）pdb The document must be changed accordingly .

So just regenerate dll Used in debugging , All need to go through the above three steps .