In my project, use this methods ,The problem of rewarding the red is still unsolved. It could be a compiler problem. Use your code to reward R2. I tried clean and Rebuild and Invalidate, but none of them worked. How to solve?
Cannot resolve symbol'R2'has been prompted all the time. It does not affect the operation of the project, but only makes the project red and looks uncomfortable.
In my project, use this methods ,The problem of rewarding the red is still unsolved. It could be a compiler problem. Use your code to reward R2. I tried clean and Rebuild and Invalidate, but none of them worked. How to solve?