It's not wanting to install for some reason.
Like it's not showing the 'Space required' and 'Space available' thing, and sometimes it says 'Cannot read 'build' of undefined'.
Any idea why this is happening?
Viewing post in Weapons Simulator 2 - FullPack comments
On what platform and version is this happening?
The PC versions do not require any installation, just run the executable to play.
On Android, it could be there is not enought space for installing... make sure you have free at least twice the size of the app (because of swapping) otherwise it will not fully complete the instalation if the space available is too tight.
Ahh, the itch.io app is a manager that downloads and unzips it for you. I tested it here and it's working fine, it could be some bug on the app...
Try downloading it manually directly from the game's page instead.
If you don't know how to do it I can help you.
it just occurred to me, the PC version is not available for free (only Android with Ads is free) so the error may be related to the app not being able to access the files... if you did buy it, then try downloading manually!