Swift - Unable to open file in target Xcode 10

Question

I am trying to run Aplication which I have downloaded from GitHub.

When I run get error unable to open file in target, I have Xcode 10.

I already searched f

Answer 1

1. Quit Xcode
2. Open Terminal
3. Change to directory (where podfile is present)
4. pod install

I was trying to do pod install after removing unwanted pod(steps 2,3 & 4), but it still was not working. Quitting Xcode (steps 1, 2, 3 & 5) worked.