Using Eclipse with CDT for C++ development on Windows. Sometime Eclipse couldn’t find the Source during debugging because of the missing mapping to the (cygwin-) drive if the workspaces is residing in root other than CYGWIN.

To resolve the mapping, If  Projects are under C:\Projects, so add mapping in Eclipse as:

/cygdrive/C  --> C:/


To add above mapping, Open Eclipse and go to

  • Windows -> Preferences -> C/C++  -> Debug -> Source Lookup Path
  • Add a new Path Mapping:
    Add -> Path Mapping -> OK
  • Change Name of Mapping  and set “Compilation path” to “/cygdrive/C” and “Local file system path” tho “C:\” (without the quotes)