Missing or invalid authenticacation key.

[Dark]

I have a problem, every time I start the game displays the following message:
Missing or invalid key authenticacation.

Anyone know of a solution?

[PristineChaos]

I just bought the game and I'm having the same problem.
Would appreciate any assistance.

[Avalanche]

I get the same problem, after searching with no success, i gave up and just uninstalled the game.

[Avalanche]

Just letting you know, running steam itself in admin mode allows nexus to work..it does for me.

[VR_Phoenix]

Цитата допису Jamie:

Just letting you know, running steam itself in admin mode allows nexus to work..it does for me.

True! Had same problem when starting the game. Now it works!