🎮 MelonLoader Schedule 1 Not Working?[Troubleshooting Guide]

If you’re a fan of Schedule 1 and run into the frustrating “MelonLoader not working” issue, you’re not alone.
This is a common challenge in the modding community, but the good news is that it’s usually fixable.

This guide will explain what’s causing the problem and walk you through step-by-step solutions to get your mods running again.

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🔍 Understanding the Problem

MelonLoader is a universal mod loader for Unity-based games like Schedule 1.
It injects code into the game’s executable so it can load mods (plugins) that add or change features.

When MelonLoader fails, the cause is often:

• 🛑 Mod incompatibility
• 📂 Incorrect file placement
• 🔒 Missing permissions
• ⚠️ Software conflicts
• 🗂 Corrupted game files

Symptoms include the game not launching, crashing instantly, or mods not loading.

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🧩 Outdated or Incompatible Mods

When Schedule 1 updates, older mods may no longer work because of game code changes.

💡 Fix:

• ✅ Check compatibility — Visit the mod’s page to confirm it supports your current game version.
• 🔄 Remove and re-add mods — Clear your Mods and Plugins folders, then add mods back one by one to find the problem.
• 📦 Use a mod manager like Thunderstore to simplify installation and avoid mismatches.

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📂 Incorrect Installation or File Placement

MelonLoader and its mods must be installed in the correct locations.

💡 Fix:

• 🔁 Reinstall MelonLoader — Delete the MelonLoader folder and version.dll file, then reinstall with the official installer.
• 📌 Place mods properly — .dll files should be in the Mods or Plugins folder, not inside subfolders.

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🔒 Administrative Privileges & Permissions

Windows security can prevent MelonLoader from injecting into the game.

💡 Fix:

• 🖱 Run as Administrator — Right-click your game’s .exe file and choose Run as Administrator.
• ⚙ Adjust folder permissions — Give your Windows account Full Control over the game’s folder.

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🚫 Conflicts with Other Software

Antivirus programs, firewalls, or other mod loaders can interfere with MelonLoader.

💡 Fix:

• 🛡 Disable antivirus/firewall temporarily — If it works, add exceptions for Schedule 1 and MelonLoader.
• 🧹 Remove old mod loaders completely before installing MelonLoader.

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🗂 Game File Issues

Damaged or missing game files can break MelonLoader.

💡 Fix:

• 🛠 Verify game integrity — On Steam:
  Right-click game → Properties → Installed Files → Verify integrity of game files.

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🔧 Advanced Troubleshooting

• 📜 Check log files — Open MelonLoader/Logs for error details.
• 📦 Try manual installation — Extract MelonLoader files directly into the game folder instead of using the installer.
• 🐧 Linux/Proton setup — Configure WINEDLLOVERRIDES or follow the MelonLoader Wiki instructions.

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✅ Final Tip

Work through each fix one at a time.
With patience, you can get MelonLoader running smoothly and enjoy your modded Schedule 1 experience again.

More troubleshooting guide here.