Build fails for no reason i can figure out

Cloryne124 · April 13, 2025, 1:15pm

When ever i try to build this project, package this project, or launch it through the project launcher it fails to build the project, on top of that it also start to open the main unreal launcher. I’ve tried to reinstall unreal, try to build it on a different device, updating visual studio, and copying over the project to a new project but i always have the same issues. I genuinely have no idea what to do so any help would be much appreciated. The unreal version is 5.4.4
here’s the log of when i tried to launch it through the project launcher:
Running AutomationTool…
Using bundled DotNet SDK version: 6.0.302
Starting AutomationTool…
Parsing command line: -ScriptsForProject=“C:/unreal/boomer shooter/Jacklyn’s Patch - Copy/RunTest.uproject” BuildCookRun -project=“C:/unreal/boomer shooter/Jacklyn’s Patch - Copy/RunTest.uproject” -noP4 -clientconfig=Development -serverconfig=Development -nocompile -nocompileeditor -installed -unrealexe=“C:\Program Files\Epic Games\UE_5.4\Engine\Binaries\Win64\UnrealEditor-Cmd.exe” -utf8output -platform=Win64 -cookonthefly -ddc=InstalledDerivedDataBackendGraph -stage -deploy -cmdline=" -Messaging" -device=Windows@LOUIS -addcmdline="-SessionId=EBBD0258476C93A4D48AA08A2607E621 -SessionOwner=‘tindl’ -SessionName=‘LOUIS’ " -run
Initializing script modules…
Total script module initialization time: 0.17 s.
Using C:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Current\Bin\MSBuild.exe
Executing commands…
Setting up ProjectParams for C:\unreal\boomer shooter\Jacklyn’s Patch - Copy\RunTest.uproject
********** COOK COMMAND STARTED **********
Running: C:\Program Files\Epic Games\UE_5.4\Engine\Binaries\Win64\UnrealEditor-Cmd.exe “C:\unreal\boomer shooter\Jacklyn’s Patch - Copy\RunTest.uproject” -run=cook -cookonthefly -unattended -CrashForUAT -AllowStdOutLogVerbosity -abslog=“C:\Users\tindl\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.4\CookServer.log” -ddc=InstalledDerivedDataBackendGraph -unversioned
Running CookServer@Process:C:\Program Files\Epic Games\UE_5.4\Engine\Binaries\Win64\UnrealEditor-Cmd.exe@3120
Cook command time: 0.07 s
********** COOK COMMAND COMPLETED **********
********** STAGE COMMAND STARTED **********
Creating Staging Manifest…
Patching bootstrap executable; C:\unreal\boomer shooter\Jacklyn’s Patch - Copy\Intermediate\Staging\RunTest.exe
Begin update resource ‘C:\unreal\boomer shooter\Jacklyn’s Patch - Copy\Intermediate\Staging\RunTest.exe’ (0)
Add resource 101, length 104 (True)
Add resource 1, length 1996 (True)
Add resource 2, length 2447 (True)
Add resource 3, length 2535 (True)
Add resource 4, length 3037 (True)
Add resource 5, length 3244 (True)
Add resource 6, length 3531 (True)
Add resource 7, length 6931 (True)
Add resource 201, length 74 (True)
Add resource 202, length 68 (True)
End update resource (True/0)
Cleaning Stage Directory: C:\unreal\boomer shooter\Jacklyn’s Patch - Copy\Saved\StagedBuilds\Windows
DumpManifest: C:\Users\tindl\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.4\FinalCopyWin64_UFSFiles.txt, NumItems: 825
DumpManifest: C:\Users\tindl\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.4\FinalCopyWin64_NonUFSFiles.txt, NumItems: 18
DumpManifest: C:\Users\tindl\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.4\FinalCopyWin64_NonUFSFilesDebug.txt, NumItems: 8
Copying NonUFSFiles to staging directory: C:\unreal\boomer shooter\Jacklyn’s Patch - Copy\Saved\StagedBuilds\Windows
Copying DebugFiles to staging directory: C:\unreal\boomer shooter\Jacklyn’s Patch - Copy\Saved\StagedBuilds\Windows
Stage command time: 3.03 s
********** STAGE COMMAND COMPLETED **********
********** DEPLOY COMMAND STARTED **********
Deploy command time: 0.01 s
********** DEPLOY COMMAND COMPLETED **********
********** RUN COMMAND STARTED **********
UnrealTrace: Starting server
Opening exist instance’s shared memory
Existing instance is the same age or newer
Waiting for Cook server to start logging at: C:\Users\tindl\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.4\CookServer.log
Waiting for Cook server to start logging…
Waiting for Cook server to start logging…
Waiting for Cook server to start logging…
Waiting for Cook server to start logging…
Waiting for Cook server to start logging…
Waiting for Cook server to start logging…
Waiting for Cook server to start logging…
Waiting for Cook server to start logging…
Waiting for Cook server to start logging…
Cook server exited with error code: 0 (see C:\Users\tindl\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.4\CookServer.log for more info)
Cook server exited without creating a log file at: C:\Users\tindl\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.4\CookServer.log
(see C:\Users\tindl\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.4\Log.txt for full exception trace)
AutomationTool executed for 0h 0m 24s
AutomationTool exiting with ExitCode=1 (Error_Unknown)
BUILD FAILED

SupportiveEntity · April 13, 2025, 9:33pm

Hey there @Cloryne124! Welcome to the community! Could we see both logs listed for their respective components? They may provide more insight into which side is having issues. I’d also recommend backing your project up safely, and deleting the Intermediate, Saved, Binaries and DerivedDataCache folders (for those you have). This will clear most cached data that could cause issues.

C:\Users\tindl\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.4\CookServer.log

and

C:\Users\tindl\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.4\Log.txt

Cloryne124 · April 14, 2025, 11:15pm

Sorry about the late response, had to go to work. I’ve backed up my project and tried deleting the Intermediate , Saved, and DerivedDataCache folders but had the same issue anyways. There wasnt a CookSever.log when i checked the folder but there was a log.txt. here is what was in the log.txt file:
Running AutomationTool…
Using bundled DotNet SDK version: 6.0.302
Starting AutomationTool…
Parsing command line: -ScriptsForProject=“C:/unreal/boomer shooter/Jacklyn’s Patch - Copy/RunTest.uproject” BuildCookRun -project=“C:/unreal/boomer shooter/Jacklyn’s Patch - Copy/RunTest.uproject” -noP4 -clientconfig=Development -serverconfig=Development -nocompile -nocompileeditor -installed -unrealexe=“C:\Program Files\Epic Games\UE_5.4\Engine\Binaries\Win64\UnrealEditor-Cmd.exe” -utf8output -platform=Win64 -cookonthefly -ddc=InstalledDerivedDataBackendGraph -stage -deploy -cmdline=" -Messaging" -device=Windows@LOUIS -addcmdline="-SessionId=EBBD0258476C93A4D48AA08A2607E621 -SessionOwner=‘tindl’ -SessionName=‘LOUIS’ " -run
Initializing script modules…
Total script module initialization time: 0.17 s.
Using C:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Current\Bin\MSBuild.exe
Executing commands…
Setting up ProjectParams for C:\unreal\boomer shooter\Jacklyn’s Patch - Copy\RunTest.uproject
********** COOK COMMAND STARTED **********
Running: C:\Program Files\Epic Games\UE_5.4\Engine\Binaries\Win64\UnrealEditor-Cmd.exe “C:\unreal\boomer shooter\Jacklyn’s Patch - Copy\RunTest.uproject” -run=cook -cookonthefly -unattended -CrashForUAT -AllowStdOutLogVerbosity -abslog=“C:\Users\tindl\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.4\CookServer.log” -ddc=InstalledDerivedDataBackendGraph -unversioned
Running CookServer@Process:C:\Program Files\Epic Games\UE_5.4\Engine\Binaries\Win64\UnrealEditor-Cmd.exe@3120
Cook command time: 0.07 s
********** COOK COMMAND COMPLETED **********
********** STAGE COMMAND STARTED **********
Creating Staging Manifest…
Patching bootstrap executable; C:\unreal\boomer shooter\Jacklyn’s Patch - Copy\Intermediate\Staging\RunTest.exe
Begin update resource ‘C:\unreal\boomer shooter\Jacklyn’s Patch - Copy\Intermediate\Staging\RunTest.exe’ (0)
Add resource 101, length 104 (True)
Add resource 1, length 1996 (True)
Add resource 2, length 2447 (True)
Add resource 3, length 2535 (True)
Add resource 4, length 3037 (True)
Add resource 5, length 3244 (True)
Add resource 6, length 3531 (True)
Add resource 7, length 6931 (True)
Add resource 201, length 74 (True)
Add resource 202, length 68 (True)
End update resource (True/0)
Cleaning Stage Directory: C:\unreal\boomer shooter\Jacklyn’s Patch - Copy\Saved\StagedBuilds\Windows
DumpManifest: C:\Users\tindl\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.4\FinalCopyWin64_UFSFiles.txt, NumItems: 825
DumpManifest: C:\Users\tindl\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.4\FinalCopyWin64_NonUFSFiles.txt, NumItems: 18
DumpManifest: C:\Users\tindl\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.4\FinalCopyWin64_NonUFSFilesDebug.txt, NumItems: 8
Copying NonUFSFiles to staging directory: C:\unreal\boomer shooter\Jacklyn’s Patch - Copy\Saved\StagedBuilds\Windows
Copying DebugFiles to staging directory: C:\unreal\boomer shooter\Jacklyn’s Patch - Copy\Saved\StagedBuilds\Windows
Stage command time: 3.03 s
********** STAGE COMMAND COMPLETED **********
********** DEPLOY COMMAND STARTED **********
Deploy command time: 0.01 s
********** DEPLOY COMMAND COMPLETED **********
********** RUN COMMAND STARTED **********
UnrealTrace: Starting server
Opening exist instance’s shared memory
Existing instance is the same age or newer
Waiting for Cook server to start logging at: C:\Users\tindl\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.4\CookServer.log
Waiting for Cook server to start logging…
Waiting for Cook server to start logging…
Waiting for Cook server to start logging…
Waiting for Cook server to start logging…
Waiting for Cook server to start logging…
Waiting for Cook server to start logging…
Waiting for Cook server to start logging…
Waiting for Cook server to start logging…
Waiting for Cook server to start logging…
Cook server exited with error code: 0 (see C:\Users\tindl\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.4\CookServer.log for more info)
Cook server exited without creating a log file at: C:\Users\tindl\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.4\CookServer.log
(see C:\Users\tindl\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.4\Log.txt for full exception trace)
AutomationTool executed for 0h 0m 24s
AutomationTool exiting with ExitCode=1 (Error_Unknown)
BUILD FAILED

SupportiveEntity · April 16, 2025, 5:59am

No cook server log leads me to believe the cook server isn’t starting at all for some reason. Could you attempt building one of the default projects? Do you have any third party Antivirus software that could be limiting access to the data the engine’s trying to pack?