R cannot be resolved to a variable

Question

I would like to fix this error

R cannot be resolved to a variable

I looked up many answers, but I could not get the right one;

Answer 1

All the above suggestions should work normally, if you are still facing issue I suspect you are using 64bit OS and ADT is looking for 32bit binaries

try executing below command in terminal and clean the project once

sudo apt-get install ia32-libs