Debug automatically opens [libraryname].ino instead of [libraryname].cpp

[cmsunu28]

If you are editing a copied library, the error bar will mistake the .cpp file you are editing for a .ino file, and will link to a nonexistent .ino if you click the error to see where the problem is.

and now with more gifs:

[suda]

I just released Particle Dev v0.1.21 package which should fix this issue. Could you try to update it (or install it in Atom if you're using standalone Particle Dev App) and see if it helped?