Files missing from a video file

Download https://elements.envato.com/digital-development-isometric-concept-7V4F228 and when i open the after effects file, it says:

  1. After Effects: this project must be converted from version 13.2 (Windows 64). The original file will be unchanged.
  2. After Effects warning: 29 files are missing since you last saved this project.

So what should do above the missing files?

The files will be in there, they just need re-linking. Right click on one of the missing files in the project panel, click replace file, locate the file in your explorer (should be in the ‘footage’ folder) and it should re-link the rest of them if they’re all in the same folder.