Just have these two problems:

1) If i open up GCFScape and open the pak01_001.vpk file it shows no items or dirs in the list.
Sceenshot

2) I can neither preview the voice sounds in Hammer Editor nor hear them ingame when i have placed one in my custom map. In the preview of hammer editor i can just see (none).

iXDe wrote:
Hey guys,

Just have these two problems:

1) If i open up GCFScape and open the pak01_001.vpk file it shows no items or dirs in the list.
Sceenshot

2) I can neither preview the voice sounds in Hammer Editor nor hear them ingame when i have placed one in my custom map. In the preview of hammer editor i can just see (none).

1. you need to use the pak_dir.vpk (the vary last one) because this one refrences content in the others.

2. If these are custom you need to rebuild the sound cache (snd_rebuildaudiocache in the dev console) then reload Portal 2. If not then they don't preview in hammer at all, this is a bug. As for ingame though, I don't know what the problem is.

iXDe wrote:
I mean the normal voices which are used in the game.

Then like I said, they don't play in hammer, it's a bug. Idk why it wouldn't work ingame though...