Question

i’m new to android, i’m getting this error. please help me in providing the solution

Thanks in advance.

Answer 1

R cannot be resolved to a variable When we will get this error.

R.java is an automatically generated file to hold all your resources used in project. It will be created under gen folder when you build your project. While building your project it will assign IDs to each resource you used in project and keeps them in their individual classes (drawable, id, layout, etc.) and creates a file R.java, place it in your package.

If anything wrong in your resource files (drawables or xml layouts) it won’t generate R.java file.

So please check it once. I too faced same problem previously.