Sitecore: - What happens if your debugger is not attached to Visual studio

Sometimes while working our system not able to attach visual studio, please follow the below steps to fix it.

1) Check the .pdb is existing in the bin folder (.DB is the referent of.dll and creating parallel to the .dll)
2) Check any issues in the visual studio, restart it once
3) Reset the skip settings of visual studio
Devenv /resetskippackages