Line xxx has no executable code

[NiCoder]

I am working on an old project which is using labWindows 5.0.  I could not set a breakpoint.  The error message is "Cannot set breakpoint. Line xxx has no executable code".  I deleted all the "cvbuild.xxx" directories and *.exe under the project directory. I also added some new lines of code but I still unable to set breakpoints. Does anyone know any settings which I need to update? And where are build the settings?

Thank you, 

[vix]

You could try deleting also the workspace (*.cws) and *.cdb file.

Then rebuild all the project