Click on the tab (or Local Files in older Steam versions).
This is the official, safest, and most effective first step to resolve any missing or corrupted game file issue. It does not involve downloading files from third-party websites, and it works for any Steam game. Here is how to do it for Injustice: Gods Among Us : injustice gods among us steamapidll fix exclusive
Sometimes the file exists, but the game lacks the permission to "call" it. Click on the tab (or Local Files in older Steam versions)