I am unable to package my game for a college project on 4.4.3 because of this error. I am unable to find what is error code 25. Any help much appreciated. I may provide aditional information upon request.
The error was that I had some spaces in the name of some project files. This made cooking crash. SO IF YOU HAVE DROPBOX OR ANY OTHER SOFTWARE THAT MIGHT RENAME YOUR ASSETS, it might be the culprit.
That said, the log has proven very helpful in fixing this issue, stating the exact errors causing the crash.