R.java missing, R cannot be resolved to a variable, even if no mistake in xml files

Question

I am new to android, started my programming basics. I am getting error as \"R cannot be resolved to a variable\" and R.java file is missing even i have clea

Answer 1

1. clean project
2. check out your others xml file
3. check out your drawable folder

Make sure your all xml file are correct and clean project is a good method. XML file don't allow upper case letters