PackagingResults:Error: Error Unknown Cook Failure

I want to package my game but this problem appear,im already check the error,but im never using that material or texture…can you gimme a solution for this problem,thank you >_<


A lot of your errors fall back on your names being too long. However I have looked at the character count and I’m seeing well below the limit being used. Try to delete your Intermediate and Saved folders from your project folder. Once you’ve done that, try to package again and see if any of the errors ease up. If not, please upload the newest logs and I’ll review both side by side and pull out errors.


I just want to add that I had the same error in my project and this is a common thing to happen. In your log near the bottom is this line:

“UE4Editor-Cmd: [2016.12.05-08.22.35:690][ 0]LogInit:Display: Failure - 27 error(s), 8820 warning(s)”

This is usually where I start my search, I filter the log for the “Error” word and start looking there. 27 errors is not so bad and I bet this can be fixed with a little digging on your end. The warnings will still allow the cook to work so those can be dealt with later.

Okay ill ty to delete Intermediate and Saved Folder…ill update again later after package

hmmm…im already tried and still getting error…maybe i must remake my level,its my first time make a project using unreal.thank you so much for the time

ah i see,ill try to check my error first…thank you

im fix my error after remake and didnt include folders that im using at previous project,ty ^^

So you’ve fixed the issue you were running in to? If so, how?

Hey Lorisama,

We have not heard back from you in a few days, so we are marking this post as Resolved for tracking purposes. If you are still experiencing the issue you reported, please respond to this message with additional information and we will offer further assistance.

Thank you!

I’m making new project,import asset from my last project into new project and didn’t import unused asset…so now I can package my project,last time so many unused asset also older version asset so there is unknown material cant read by newer version