"File copy failed. Client error data, please reinstall the client."

[Dymond]

My dragon nest launcher says I need to reinstall it, after doing so it still gives me the same error. help!

[luckereq]

Same problem here, i cant patch the game, it tells me to reinstall and after reinstalling same thing shows up to me, tried installing on both drives, doesnt make a difference.

[Rare]

I kept trying and running it as Admin. I pretty much forced it to bypass the issue and it worked! Try that out.

[Piers]

I kept trying and running it as Admin. I pretty much forced it to bypass the issue and it worked! Try that out.

Well, that one worked. Thanks so much!