Persistent "Failed to load il2cpp" Error on Startup

[Fulkann]

Problem Description: I am unable to launch the Pokémon Revolution Online client. Every time I try to run the executable, I receive the "Failed to load il2cpp" error message. I am using Windows 11 (64-bit).

What I have already tried:

• Visual C++: Installed the latest Visual C++ Redistributable packages  x64.

• Antivirus/Firewall: Added the entire game folder to Windows Defender exclusions. Checked protection history, and no files were quarantined or deleted.

• File Integrity: Re-downloaded and re-extracted the game files multiple times. Verified that GameAssembly.dll is present in the folder.

• Permissions: Ran the game as an Administrator.

• File Path: Moved the game folder directly to C:\ to ensure there are no special characters or long paths.

• Compatibility: Tried running in compatibility mode and disabling full-screen optimizations.

Despite these steps, the error persists. Any help would be greatly appreciated.

[Beacon]

Hello @Fulkann,

 

Thank you for the additional screenshots and information.

The client files appear to be extracted correctly, including the il2cpp_data folder, so this does not seem to be an extraction issue.

This type of error is commonly related to antivirus/security software or missing system dependencies blocking the client from loading correctly.

Please try the following:

• Reinstall both the x64 and x86 Microsoft Visual C++ Redistributables.
• Make sure your Windows installation is fully updated.
• Temporarily disable your antivirus/firewall and test the client again.
• Ensure the game folder is added to your antivirus exclusions.
• Redownload the client and extract it again using a program such as 7-Zip or WinRAR.
• Run the client as Administrator.

If the issue still persists afterward, please let us know.

Looking forward to your reply.

[Fulkann]

9 hours ago, Beacon said:

Olá @Fulkann,

 

Obrigado pelas capturas de tela e informações adicionais.

Os arquivos do cliente parecem ter sido extraídos corretamente, incluindo o il2cpp_data pasta, então isso não parece ser um problema de extração.

Esse tipo de erro geralmente está relacionado a antivírus/software de segurança ou dependências de sistema ausentes que impedem o cliente de carregar corretamente.

Por favor, tente o seguinte:

• Reinstale os redistribuíveis x64 e x86 do Microsoft Visual C++.
• Certifique-se de que a instalação do Windows esteja totalmente atualizada.
• Desative temporariamente seu antivírus/firewall e teste o cliente novamente.
• Certifique-se de que a pasta do jogo seja adicionada às suas exclusões de antivírus.
• Baixe novamente o cliente e extraia-o novamente usando um programa como 7-Zip ou WinRAR.
• Execute o cliente como Administrador.

Se o problema persistir depois, avise-nos.

Aguardamos sua resposta.

Thank you so much for the help! Please excuse any mistakes as I am using a translator. The issue was that I accidentally downloaded the Visual C++ Redistributable x64 twice; I thought I had downloaded both x64 and x86. I downloaded both again and it worked! Thank you for your time.