'R cannot be resolved to a variable' - gen folder is empty

Question

I\'ve got an error:

R cannot be resolved to a variable

in line:

setContentView(R.layout.main);

but I can\'t r

Answer 1

Yeah, i got stuck on this for hours. My solution was to: delete all projects from workspace->re-import the desired project by going to file->import->Browse->selecting the project->and finally check the "add project to working sets box" then clicking finish. The .R errors i once had then disappeared. I hope this helps someone!