If the error persists, delete fg-optional-bonus-soundtracks.bin from your installation folder entirely, uncheck "Soundtracks" in the installer component menu, and run the setup again. Final Verdict
file to verify that the data wasn't corrupted during download. Common Issues Missing File Error fg-optional-bonus-soundtracks.bin
Skipping this file or cause the installation to fail, provided your installer knows it is intentionally missing. How to Install a Repack Without the Optional Soundtrack If the error persists, delete fg-optional-bonus-soundtracks