To get HLDJ working in the MAC Update (TF2)

[DailyDozo]

It seems as though you can't get it to lock onto the /tf/ directory after updating, but after playing a few games it worked for me, and quite a few other people.

[Renegade]

This is already noted in Known Game Issues:

Game: Source-based games (i.e. CS:S, TF2, etc.)

Issue #3: Cannot find game directory, or it is invalid (gameinfo.txt missing).

Severity: Low

Status: Workaround found

Solution: Start the game at least once more and then re-add it in HLDJ Setup.

Info:
Occasionally, Steam will remove gameinfo.txt (i.e. after an update or re-install) without unpacking it again from the Steam filesystem until the game has been started. This file is critical in order for HLDJ to recognize the Source game properly.