When joining the game, it writes: "Your game files do not match the server's. Try verifying your game cache in steam, or maybe an update just came out."

[T_Azik]

When joining the game writes: "Your game files do not match the server's. Try verifying your game cache in steam, or maybe an update just came out."
Help plz.

[Azure Zero]

Verify:
Right-Click on Game
Select Properties
Enter Local Files tab
Click Verify Game Cache

I would recommend posting this on the NS2 Technical Forums for better help