Save, Rehash, and Resign

Hello i have followed videos after videos on how to mod borderlands 2 and i get to the last part, Save, Rehash and Resign, and it pops up a error :An error has occured while writing back to the loaded Package! If you see a developer, the following message will help him resolve the issue: Object already exists.

I followed every video on how to use Horizon but i have a problem with this last part, please help.

thats keep happening to me too. i dont know what to do );

And this happens in horizon, right? Have you tried re-installing it?

ill try

no. didnt help

); dont know wht to do

I have done it 4 different ways and uninstalled and re installed it 3 times now. it keeps coming up with that error. :confused: How to I fix it?

atleast you know how! idk how to do rehash or resign anything!