'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

Don't import Android.R;

instead,

import package.name.R; where package.name is your package name declared in the manifest.

Android.R contains all the default layouts packaged with Android. Your custom layout will not be Android.R, it will be in package.name.R;