unreal-engine5unreal

The game module 'X' could not be loaded. There may be an operating system error

Error Message

My project was working fine but after verifying my Unreal Editor install on the Epic Games Launcher I'm receiving this error message when I tried to open my Unreal Engine 5.3 project.

The game module 'MyProjectName' could not be loaded. There may be an operating system error, the module may not be properly set up, or a plugin which has been included into the build has not been turned on.

What could happen after Verifying I don't know.

I've already tried the steps below

Result

I am still getting the same error message.

Solution

  • Solution

    I’ve some plugins in my project. And months ago I enabled them under some folder on my disk. I’ve already forgotten those. Probably you’re in the same situation.

    Step 1

    Go to the Plugins directory on your disk. For my current version, this is the directory on my disk:

    C:\Program Files\Epic Games\UE_5.3\Engine\Plugins\Runtime

    Step 2

    Find your mysterious plugin there, and open the directory. In my case, it was the HairStrands plugin.

    C:\Program Files\Epic Games\UE_5.3\Engine\Plugins\Runtime\HairStrands

    Step 3

    There is a file with the .uplugin extension, open with your desired editor of choice:

    HairStrands.uplugin

    Step 4

    Find the EnabledByDefault word in the document. You’ll probably see it like below:

    ...
"EnabledByDefault": false,
...

    Step 5

    So, we need to enable that setting/s to be able to open our project again.

    ...
"EnabledByDefault": true,
...

    👆 Solved!

    That solved the problem!

    ⚠️ You've to repeat the process if you've more than one plugin.

    Step 6

    Just re-open your project.

    Version

    This issue is version-independent and exists in both Unreal Engine 4 and 5. Till version 5.3.

    Hoping to see a solution in future releases.