Warning “Missing Media”

This warning message appears because the packet with transitions includes sound effects and other media files.
To fix this, need Premiere Pro to remember the way to the necessary media files. Do the following:

1. On your disk, in the directory where you saved the project, open the “Transitions” folder.
2. Open the .prproj file with the resolution you are planning use later.
3. Re-save this project file.