There are a number of duplicate errors causing the cook/package to fail. Just from the summary section at the end, I've found:
LogInit: Display: LogPackageName: Error: DoesPackageExist: DoesPackageExist FAILED: <filename> is not a standard unreal filename or a long path name. Reason: Name may not contain the following characters: " "
This means you have asset files (.uasset) with spaces in their names. From what I can tell, you have a ton of assets named "filename - Copy". The " - Copy" at the end is a problem because spaces are not allowed in any filename or path by Unreal, to prevent issues on certain platforms. If you need to keep the "Copy" part, I recommend renaming them to "_Copy" instead. I think the spaces in your project folder "Unreal Projects/Dark Legends of Koyannis" may also cause problems due to the spaces, since you aren't allowed to have spaces in a project name when you create it. I recommend fixing the asset name issues before messing with that though.
LogInit: Display: CookResults: Error: Couldn't save package, filename is too long:
According to this answer about "filename too long" errors, file paths must be 227 characters or shorter, due to limitations with Windows. I recommend moving your projects folder to the root of the
C:/ drive, such as
C:/Projects, since the
Users/Kieron/Documents/Unreal Projects/ portion adds 39 characters (if my count is correct) on its own, making it harder to work with longer asset filenames/paths.
LogInit: Display: LogLinker: Warning: Failed to read package file summary, the file <filename> is too small (0 bytes, expected at least 32 bytes)
This means you have a bunch of empty .uasset files in your content directory, likely from things you deleted that didn't get cleaned up properly. Manually deleting them should fix it, since they contain no data anyway.
LogInit: Display: CookResults: Warning: Unable to find package for cooking <filename>
These files can't be found for packaging since they failed to cook. The ones listed are the same ones as issue 1, where they contain spaces. Once you fix that cooker issue, it should fix this packaging issue.
The Error/Warning Summary section I checked for this info near the bottom says it's only showing the first 50 unique errors, all of which are related to the four I covered above with different files. Hopefully fixing what I covered will fix more than 50 errors, since it says you have 4316 errors and 39,677 warnings, although some of those could be duplicates because Unreal really likes to complain when there's an error.
I don't have time to go through the whole log file at the moment, but I'll be around to help should any more issues pop up after you fix what I covered. And I'll try to skim the log file for other issues while you fix these.
I hope you get it working soon! :)
Oct 25 '18 at 08:21 PM