[crash] i c'ant open my project when i add a plugin

Development Pipeline & Plugins
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1

Hi everyone,

I’m facing an issue with Unreal Engine when I try to launch my project. Here’s the error message I get:

" Fatal error: [File:D:\build\U5M-Marketplace\Sync\LocalBuilds\PluginTemp\HostProject\Plugins\Substance\Source\SubstanceCore\Private\SubstanceCoreModule.cpp] [Line: 157]
Unable to load Substance Library. "

  • The plugin is correctly installed in the default location on my C:\ drive.
  • It seems Unreal Engine is misconfigured and is looking for the plugin in the wrong directory.

i use Unreal Engine Version:** 5.5.1

my question :

  • How can I force Unreal Engine to look for the Substance plugin in the correct directory on C:\?
  • Is there a global configuration file or hidden setting where this incorrect D:\ reference might be stored?
  • Has anyone else experienced a similar issue, and how did you resolve it?

Thanks in advance for your help! Let me know if you need more information or logs to better understand the issue. :blush:

2

Hello there @Toutclakos!

I have encountered this issue in other threads. Please follow these steps to resolve the issue:

  • Go to your engine install location (example C:\Program Files\Epic Games\UE_5.5\Engine\Plugins\Marketplace).

  • Your plugins should be here, in folders with random string of numbers and letters after

  • Locate the Substance plugin folder and rename it to just “Substance”

  • Restart your engine and check your materials, you may need to re-check certain features, like tessellation.

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Hope this helps!