PackagingResults:Error: Error Unknown Cook Failure

Help, i can´t even launch or pack the project… it worked in 4.9 but it just dosnt work…

[Buildlog here][1]

[1]:

Hi

Due to the large volume of questions and comments concerning the Engine, we did not have a chance to respond to your post at the time you submitted it and, thus, the issue is now outdated. If you are still experiencing this issue in the current release of the Engine, please make a new post for assistance.

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