Description

Subsequent packaging attempts when Generate Chunks, Blueprint Nativization, Full Rebuild, and For Distribution are enabled will fail. The error that appears states that the AutomationTool log file is being used by another process and therefore cannot be written to.

Project: [Link Removed]

Error:

[2017.05.04-21.13.51:883][869]UATHelper: Packaging (Windows (64-bit)): Program.Main: ERROR: AutomationTool terminated with exception: System.AggregateException: One or more errors occurred. ---> AutomationTool.AutomationException: Failed to Write to file C:\Users\matthew.clark\AppData\Roaming\Unreal Engine\AutomationTool\Logs\D+Epic+Games+4.15\UnrealPak-2017.05.04-17.13.50.txt ---> System.IO.IOException: The process cannot access the file 'C:\Users\matthew.clark\AppData\Roaming\Unreal Engine\AutomationTool\Logs\D+Epic+Games+4.15\UnrealPak-2017.05.04-17.13.50.txt' because it is being used by another process.

Regression?: No
This also occurred in 4.14

Steps to Reproduce
  1. Download the project in the description
  2. Generate project files, compile, and open the project
  3. Package the project
  4. After the packaging attempt completes, package again
    Result: The packaging attempt fails with the error listed in the description
    Expected: The packaging attempt succeeds

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Cannot Reproduce
ComponentDevTools - AutomationTool
Affects Versions4.144.154.16
CreatedMay 4, 2017
ResolvedJan 9, 2019
UpdatedJan 9, 2019