Problem with packcheck

When i was trying to install for the first time, some error happened and i receive this notice:

Exception
File not found:
Bundles2/Streaming/Content/metadata/terrain/doodads/desert/E7A9B7
826554E66A.96494FECB0636639.ruined_fariduntent02.ao.bundle.bin

Then when i try to install again i receive this one:

Exception
Your pack file need to be repaired. Please run the packcheck.exe repair tool to fix it

But there's no packcheck.exe in the folder where i try to install the game.