Unreal Engine Issues

UE-48027

Deploying from Windows to Linux fails on the first attempt

Deploying from Windows to Linux fails on the first attempt

Description

After hitting this failure, if you try to deploy again, then it will work. This only occurs on the first attempt.

Initially, I thought I hit a disc space issue I was hitting due to having a sample with a large .exr file. After looking back in my logs, I noticed that was not the case.

Steps to Reproduce

Setup:
Latest Linux toolchain on Windows machine.

Repro:

  • On a Windows machine create a C++ project using the Basic Code template without Starter Content.
  • On the editor toolbar, click the arrow next to the Launch button to open the submenu
  • Select Device Manager
  • Expand "Add An Unlisted Device"
  • Create a device profile with the following settings:
    • Platform: LinuxNoEditor
    • Device Identifier: <ip address of Linux machine>
    • Display Name: SomeName
    • User: <User on Linux machine>
    • Password: <Password of user on Linux machine>
  • After completing that profile, click the Add button
  • Click the arrow next to the Launch button and select the device profile that was just added.

Result:
Launch on fails with something similar to what is shown in the comments

Inside of that PSCP logfile an error message similar to the following is spammed:

pscp: unable to open ./WinToLinuxRepro: failure

Expected:
User can deploy from Windows to Linux successfully on the first attempt.

Callstack
LogPlayLevel: PSCP: pscp: unable to open ./WinToLinuxRepro: failure
LogPlayLevel: CommandUtils.Run: Run: Took 1.5941504s to run PSCP.EXE, ExitCode=1
LogPlayLevel: Program.Main: ERROR: AutomationTool terminated with exception: AutomationTool.CommandUtils+CommandFailedException: Command failed (Result:1): D:\GitHub_Release-4.17\3570059\Engine\Extras\ThirdPartyNotUE\putty\PSCP.EXE -batch -pw <password> -r "C:\Users\Michael.Karambelas\Documents\Unreal Projects\WinToLinuxRepro\Saved\StagedBuilds\LinuxNoEditor" michael@<ip>:./WinToLinuxRepro. See logfile for details: 'PSCP-2017.08.03-12.29.59.txt'
LogPlayLevel:    at AutomationTool.CommandUtils.RunAndLog(String App, String CommandLine, String Logfile, Int32 MaxSuccessCode, String Input, ERunOptions Options, Dictionary`2 EnvVars, SpewFilterCallbackType SpewFilterCallback) in D:\GitHub_Release-4.17\3570059\Engine\Source\Programs\AutomationTool\AutomationUtils\ProcessUtils.cs:line 913
LogPlayLevel:    at AutomationTool.CommandUtils.RunAndLog(CommandEnvironment Env, String App, String CommandLine, String LogName, Int32 MaxSuccessCode, String Input, ERunOptions Options, Dictionary`2 EnvVars, SpewFilterCallbackType SpewFilterCallback) in D:\GitHub_Release-4.17\3570059\Engine\Source\Programs\AutomationTool\AutomationUtils\ProcessUtils.cs:line 866
LogPlayLevel:    at BaseLinuxPlatform.Deploy(ProjectParams Params, DeploymentContext SC) in D:\GitHub_Release-4.17\3570059\Engine\Source\Programs\AutomationTool\Linux\LinuxPlatform.Automation.cs:line 224
LogPlayLevel:    at Project.Deploy(ProjectParams Params) in D:\GitHub_Release-4.17\3570059\Engine\Source\Programs\AutomationTool\Scripts\DeployCommand.Automation.cs:line 56
LogPlayLevel:    at BuildCookRun.DoBuildCookRun(ProjectParams Params) in D:\GitHub_Release-4.17\3570059\Engine\Source\Programs\AutomationTool\Scripts\BuildCookRun.Automation.cs:line 243
LogPlayLevel:    at BuildCookRun.ExecuteBuild() in D:\GitHub_Release-4.17\3570059\Engine\Source\Programs\AutomationTool\Scripts\BuildCookRun.Automation.cs:line 40
LogPlayLevel:    at AutomationTool.BuildCommand.Execute() in D:\GitHub_Release-4.17\3570059\Engine\Source\Programs\AutomationTool\AutomationUtils\BuildCommand.cs:line 100
LogPlayLevel:    at AutomationTool.Automation.Execute(List`1 CommandsToExecute, Dictionary`2 Commands) in D:\GitHub_Release-4.17\3570059\Engine\Source\Programs\AutomationTool\AutomationUtils\Automation.cs:line 563
LogPlayLevel:    at AutomationTool.Automation.Process(String[] Arguments) in D:\GitHub_Release-4.17\3570059\Engine\Source\Programs\AutomationTool\AutomationUtils\Automation.cs:line 533
LogPlayLevel:    at AutomationTool.Program.MainProc(Object Param) in D:\GitHub_Release-4.17\3570059\Engine\Source\Programs\AutomationTool\Program.cs:line 133
LogPlayLevel:    at AutomationTool.InternalUtils.RunSingleInstance(Func`2 Main, Object Param) in D:\GitHub_Release-4.17\3570059\Engine\Source\Programs\AutomationTool\AutomationUtils\Utils.cs:line 708
LogPlayLevel:    at AutomationTool.Program.Main() in D:\GitHub_Release-4.17\3570059\Engine\Source\Programs\AutomationTool\Program.cs:line 57

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Fixed
ComponentUE - Platform - Linux
Affects Versions4.17, 4.18, 4.21
Target Fix4.22
Fix Commit4679128
Main Commit4837001
Release Commit4862694
CreatedAug 3, 2017
ResolvedJan 23, 2019
UpdatedFeb 4, 2020
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