Locating Project Logs - Epic Wiki
# Locating Project Logs
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# Contents
# Editor Session Log
This log will be generated while running UE4Editor.exe or in a specific project. This file is almost always going to be included when needing a log.
Log Name
Windows location
Mac Location
UE4.log
UE4-backup-YYYY.DD.MM-HR.Mn.Sc.log
Engine\Saved\Logs\
~/Library/Logs/Unreal Engine/Editor/
ProjectName.log
ProjectName-backup-YYYY.DD.MM-HR.Mn.Sc.log
ProjectName\Saved\Logs\
~/Library/Logs/Unreal Engine/ProjectNameEditor/
# Game Logs
This log will be generated while running a Cooked/Packaged Project (ProjectName.exe or ProjectName.app) Always include this if there is an issue with running the packaged game.
Log Name
Windows location
Mac Location
ProjectName.log
WindowsNoEditor/ProjectName/Saved/Logs
~/Library/Logs/ProjectName/
# Build/Cook/Package Logs
These logs are generated any time you Build/Cook/Package a project. File >Package > Platform, Editor Launch On, UFE sessions.
Log Name
Windows location
Mac Location
Cook.txt
UAT_Log.txt UnrealBuildTool-YYYY.MM.DD-HH.mm.ss.txt
P4 - Engine\Programs\AutomationTool\Saved\Logs
Binary - %USERPROFILE%\AppData\Roaming\Unreal Engine\AutomationTool\Logs\
~/Library/Logs/Unreal Engine/LocalBuildLogs/
# Crash Logs
These are the logs that created and uploaded to CrashReporter.
Log Name
Windows location
Mac Location
diagnostics.txt
minidump.dmp ProjectName.log
%USERPROFILE%\AppData\Local\Microsoft\Windows\WER\ReportQueue (Note: C:\Users\UserName\AppData is invisible, just type the path on the address bar)
P4 - Engine/Saved/Crashes/CrashReport-ProjectName/
Binary: ~/Library/Application Support/Epic/Unreal Engine/4.X/Saved/Crashes/CrashReport-ProjectName/ (Note that /Users/yourusername/Library is invisible. Hold the alt-key and from the finder menu select Go->Library)
# Compile Logs
Any time a compile fails in Visual Studio or Xcode, copy all of the Output and paste into a txt file. Often times we only copy the last few lines that say it failed, which really doesn’t give the information that devs need.
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