LogStreaming Warning: Failed to read file 'Common/Selector.png' and related errors - How to resolve?

General Issues and Bug Reporting UEFN Validation
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Environment:

  • Unreal Engine version: [5.5.1]
  • Operating system: [Windows 11 ]

Issue:
I am encountering specific warnings in the logs related to missing files. Here are the main error messages:

LogStreaming: Warning: Failed to read file ‘…/…/…/Engine/Platforms/VisionOS/Content/Editor/Slate/Launcher/Platform_VisionOS_24x.png’ error. LogStreaming: Warning: Failed to read file ‘…/…/…/Engine/Platforms/VisionOS/Content/Editor/Slate/Launcher/Platform_VisionOS_128x.png’ error. LogStreaming: Warning: Failed to read file ‘Common/Selector.png’ error.

Steps Taken:

  1. Searched for the mentioned files but could not locate them in the specified directories.
  2. Tried disabling potentially related plugins but the issue persists.
  3. Rebuilt the project and cleared all cached files.
  4. Confirmed that the VisionOS-related errors also appear in newly created projects.

Questions:

  1. What is the cause of these errors, and how can they be resolved?
  2. Is there a way to identify the source of the Common/Selector.png reference or related plugins?
  3. How should I handle the VisionOS-related errors, especially if they occur in new projects by default?

Additional Information:

  • My project uses image assets in the title screen only, but these errors persist regardless.
5 Likes
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Same here… 5.5 has been released with some quite low quality standards. It’s frustrating, because if Epic themselves just release final engine versions with log warnings, it teaches average users bad habit that warnings are something common that should be ignored.

5 Likes
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Same problem with my 5.5.1
Still couldn’t find the solution, if anyone knows the solution will be very appreciated

1 Like
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image
image2364×697 154 KB

empty project i just add Default ThirdPersonPack
It`s soooooo many question for me
i m new… and dont know how to deal this

1 Like
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image
image1136×997 173 KB

i Find it …but still have some question

6

easy following the warning file path…its the Common/Selector that make me mad… i placed a fake copy everywhere, but no way

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To track down the ‘Common/Selector.png’ error. I put a break point in the code and saw that it was coming from DocumentationStyleSet.cpp. More precisely this line of code:
Set(“ToolTip.TopSeparator”, new BORDER_BRUSH(“Common/Selector”, FMargin(0.0f, 1.0f, 0.0f, 0.0f), FStyleColors::Hover));

For the BORDER_BRUSH macro to work properly, the code needs to call this:
SetContentRoot(FPaths::EngineContentDir() / TEXT(“Editor/Slate”));

If you have access to the code you can add this:
SetContentRoot(FPaths::EngineContentDir() / TEXT(“Editor/Slate”));
at the start of this constructor:
FDocumentationStyleSet::FDocumentationStyleSet()

If you do not have access to the code, there is an open bug about this: Unreal Engine Issues and Bug Tracker (UE-237138)

4 Likes
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glad Im not the only one offended by rando warnings and errors that make no sense and need to be understood and squashed… why is there missing icons and directories in Unreal shipping install ?

1 Like
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DefaultEngine.ini => Add [Core.Log]

[Core.Log]
LogStreaming=Error
LogEOSSDK=Error
LogEOS=Error
LogImageWrapper=Error

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=== 0) Completely close UE and Epic Games Launcher ===

$UE = “C:\Program Files\Epic Games\UE_5.5\Engine”

1) Grant full permissions on target paths

takeown /F “$UE\Platforms\VisionOS” /A /R /D Y | Out-Null
icacls “$UE\Platforms\VisionOS” /grant Administrators:F /T /C | Out-Null
takeown /F “$UE\Plugins\Interchange” /A /R /D Y | Out-Null
icacls “$UE\Plugins\Interchange” /grant Administrators:F /T /C | Out-Null

2) Create required directories

$vos = Join-Path $UE “Platforms\VisionOS\Content\Editor\Slate\Launcher”
$ich = Join-Path $UE “Plugins\Interchange\Editor\Content\Old\Tiles\Outer”
New-Item -ItemType Directory -Force -Path $vos,$ich | Out-Null

3) Copy REAL PNGs (not base64 placeholders)

$src24  = Join-Path $UE “Platforms\Windows\Content\Editor\Slate\Launcher\Platform_Windows_24x.png”
$src128 = Join-Path $UE “Platforms\Windows\Content\Editor\Slate\Launcher\Platform_Windows_128x.png”

Fallbacks: if not found above, grab any PNG from Engine\Content\Slate

if (-not (Test-Path $src24))  { $src24  = (Get-ChildItem -Recurse -Filter *.png -Path (Join-Path $UE “Content\Slate”) | Select-Object -First 1).FullName }
if (-not (Test-Path $src128)) { $src128 = (Get-ChildItem -Recurse -Filter *.png -Path (Join-Path $UE “Content\Slate”) | Select-Object -First 1).FullName }

Copy-Item $src24  (Join-Path $vos “Platform_VisionOS_24x.png”)  -Force
Copy-Item $src128 (Join-Path $vos “Platform_VisionOS_128x.png”) -Force
Copy-Item $src24  (Join-Path $ich “alertSolid.png”)             -Force

4) Verify

"Exists 24x:  " + (Test-Path (Join-Path $vos “Platform_VisionOS_24x.png”))
"Exists 128x: " + (Test-Path (Join-Path $vos “Platform_VisionOS_128x.png”))
“Exists alert:” + (Test-Path (Join-Path $ich “alertSolid.png”))