Cannot launch game on Steamdeck

Development Programming & Scripting
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1

Error code:

LogUObjectHash: Compacting FUObjectHashTables data took   0.83ms
LogPlayLevel: Launcher Device ID: Linux@192.168.1.218
LogPlayLevel: PlayLevel: No blueprints needed recompiling
LogLauncherProfile: Unable to use promoted target - receipt H:/workspace/Binaries/Linux/Stellarune.target is not for a promoted target
LogPlayLevel: UAT: Running AutomationTool...
LogPlayLevel: UAT: Using bundled DotNet SDK version: 6.0.302
LogPlayLevel: UAT: Starting AutomationTool...
LogPlayLevel: UAT: Parsing command line: -ScriptsForProject=H:/MyProject.uproject BuildCookRun -project=H:/MyProject.uproject -noP4 -clientconfig=Development -serverconfig=Development -nocompile -nocompileeditor -installed -unrealexe=D:\UnrealEngines\UE_5.3\Engine\Binaries\Win64\UnrealEditor-Cmd.exe -utf8output -platform=Linux -target=MyProject-build -cook -map=/Game/Maps/TestBattle+/Game/Maps/TestBattle -CookCultures=en -unversionedcookedcontent -stage -deploy -cmdline="/Game/Maps/TestBattle -Messaging" -deviceuser=deck -
device=Linux@192.168.1.218 -addcmdline="-SessionId=1B9E3AE8415F4F6C93B503928B9B3A2B -SessionOwner='xiaoz' -SessionName='Launch On Device'  " -run
LogPlayLevel: UAT: Initializing script modules...
LogPlayLevel: UAT: Total script module initialization time: 0.16 s.
LogPlayLevel: UAT: Executing commands...
LogPlayLevel: UAT: Setting up ProjectParams for H:\MyProject.uproject
LogPlayLevel: UAT: Password: System.InvalidOperationException: Cannot read keys when either application does not have a console or when console input has been redirected. Try Console.Read.
LogPlayLevel: UAT:    at System.ConsolePal.ReadKey(Boolean intercept)
LogPlayLevel: UAT:    at BaseLinuxPlatform.PlatformSetupParams(ProjectParams& ProjParams) in D:\UnrealEngines\UE_5.3\Engine\Source\Programs\AutomationTool\Linux\LinuxPlatform.Automation.cs:line 357
LogPlayLevel: UAT:    at BuildCookRun.SetupParams() in D:\UnrealEngines\UE_5.3\Engine\Source\Programs\AutomationTool\Scripts\BuildCookRun.Automation.cs:line 105
LogPlayLevel: UAT:    at BuildCookRun.ExecuteBuild() in D:\UnrealEngines\UE_5.3\Engine\Source\Programs\AutomationTool\Scripts\BuildCookRun.Automation.cs:line 41
LogPlayLevel: UAT:    at AutomationTool.BuildCommand.Execute() in D:\UnrealEngines\UE_5.3\Engine\Source\Programs\AutomationTool\AutomationUtils\BuildCommand.cs:line 345
LogPlayLevel: UAT:    at AutomationTool.BuildCommand.ExecuteAsync() in D:\UnrealEngines\UE_5.3\Engine\Source\Programs\AutomationTool\AutomationUtils\BuildCommand.cs:line 354
LogPlayLevel: UAT:    at AutomationTool.Automation.ExecuteAsync(List`1 CommandsToExecute, Dictionary`2 Commands) in D:\UnrealEngines\UE_5.3\Engine\Source\Programs\AutomationTool\AutomationUtils\Automation.cs:line 265
LogPlayLevel: UAT:    at AutomationTool.Automation.ProcessAsync(ParsedCommandLine AutomationToolCommandLine, StartupTraceListener StartupListener, HashSet`1 ScriptModuleAssemblies) in D:\UnrealEngines\UE_5.3\Engine\Source\Programs\AutomationTool\AutomationUtils\Automation.cs:line 164
LogPlayLevel: UAT: (see C:\Users\xiaoz\AppData\Roaming\Unreal Engine\AutomationTool\Logs\D+UnrealEngines+UE_5.3\Log.txt for full exception trace)
LogPlayLevel: UAT: AutomationTool executed for 0h 0m 1s
LogPlayLevel: UAT: AutomationTool exiting with ExitCode=1 (Error_Unknown)
LogPlayLevel: Completed Launch On Stage: Launch Task, Time: 2.008073
LogPlayLevel: UAT: BUILD FAILED
PackagingResults: Error: Launch failed! Unknown Error
2

Hey!! I’m having the exact same issue… did you manage to fix it by any chance?

3

are you guys targeting steamdeck for linux?

Steam Deck uses Proton, a tool that translates Windows DirectX API calls to Vulkan, enabling Windows games to run on Linux.

so try to compile for Windows instead and retry

4

Thanks for the reply, windows packaging works, but I need to target native linux so I don’t have to package every time I do a change. Do you know if there is a way of targeting windows and running directly on deck? or packaging is the only option?

5

I think is the only option but not sure

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