Packaging Results: Error Unknown Cook Failure 4.10(Please Help)

Hello Guys,

I tried to package the current version of my game for Windows 64bit, but as some of you experienced before I recieved a Cook Error. I am using UE 4.10. I read most of the topics regarding this error some of them gave solutions some of them were uncomplete. But none of the solutions I read worked for me :confused:

I tried:

  • Upgrade to version 4.11 and try to package the game;
  • Rename the folder whre the project is, Open it again, Close it, Rename the folder to its original name, Open it again and package it;
  • Delete the three folders in my game folder(Config,Saved and Intermediate) and then package the game.
  • restart my computer, open the project, refresh some of the blueprints(using refresh all nodes command) and package the game.
  • Re-save all of my materials and package the game.
  • etc, the list is long.

I read that I need to upload my error log so you guys can have a look yourselves:

I hope that you can find the missing peace of the puzzle that I did not.

With kind regards,

Todor Tsekov.

Hi Todor,

a few of other things to try

Fix redirectors (right click Contents, Fix Redirectors…)

Disable most plugins you don’t use, especially the experimental ones. This works 80% of the time.

Try package before cook

Hope it helps, let us know what worked if it worked.

Hello ,

First of all thank you for the fast response.

I did the first step which is Fix redirectors.

I am not sure how to do the second step, I mean from where can I disable all the plugins? I searched in the project settings and I found a Plugins section but there only 3 plugins sort of speak to choose from. Is that it ? And I have a problem I am using experimental plugins :confused: Like widgets attached to pawns and actors( I hope I explaind taht well).

For the third step- how can I package before cooking. I looked in the project settings again under packaging but I could not find it. Any suggestions?

P.S. I tryed to package the game with one the first step done ofcourse :smiley: but it didn not work out.

For the second step I mean the Widget Component which is experimental class.

Todor, from the menu, Edit → Plugins - turn off most things you don’t need and restart UE4.

yeah Package before Cook I meant File → Package project, then try Cook after.

Let me know :slight_smile:

Hello ,

I had some testing to do today, so I couldn’t answer right away.
I followed your steps, but it didn’t work out :confused: Now when I press edit i cant see the pluging option anymore. I saved my package report and my cook report after packaging. If you think they might help I can upload them as well.

Do you know of some other way that I can try out?

Thank you for the help.

Todor, could you just link to the error log please. Thanks :slight_smile:

Here they are:

Packaging the game

Cooking the game after packaging

Hello did you manage to find any solution about this problem or maybe you can guide me in some direction?

Hello guys I still have this error. Did someone find a solution for it? Can you redirect me to a possible answers?

Hello Guys I solve my error by following this post : RunUAT.bat Error - AnswerHub - Unreal Engine Forums Now I can package my games with ease :slight_smile: But after that I had another error where I can’t run the packaged .exe but I found a solution for that also : Failed to open descriptor file error - Programming & Scripting - Unreal Engine Forums Read this article. The solution for me was : schubboy Aug 27 '15 at 4:59 PM

Somebody else suggested going into the /bin directory and change the exe name to not include ‘-win32-shipping’ - EG: make sure its the actual name of your project. That worked perfectly for me.

I hope I helped you guys. :slight_smile: