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Fix Terraria Error tModLoader

How to Fix Terraria Error tModLoader

By
Angel Marquez
2023-08-30 06:54:40

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Learn How to Fix Terraria Error tModLoader with our step-by-step guide. Resolve gaming issues quickly.


Terraria is an incredibly popular sandbox game that allows players to explore and build in a vast pixelated world. One of the reasons for its enduring popularity is the ability to customize and enhance the gameplay through mods. tModLoader, a popular modding tool, allows players to add a wide range of mods to their Terraria experience, providing endless possibilities for creativity and exploration.


However, like any software, tModLoader is not immune to errors and issues. Many players have encountered the dreaded "tModLoader" error, which can be frustrating and prevent them from enjoying the game to its fullest. In this guide, we will walk you through simple and effective solutions to fix the "tModLoader" error, ensuring that you can get back to enjoying your Terraria adventures in no time.

Verify Terraria Files


Before diving into troubleshooting, it's essential to verify the integrity of your Terraria files. This step is crucial as it ensures that your game installation is correct and not causing any conflicts with tModLoader. To verify your Terraria files, follow these steps:

  • 1. If you purchased Terraria through the Steam platform, open your Steam library and right-click on "Terraria" in the game list.
  • 2. From the context menu, select "Properties" and navigate to the "Local Files" tab.
  • 3. Click on the "Verify Integrity of Game Files" button. Steam will then compare your game files with the latest version and replace any corrupted or missing files.

If you are using GOG Galaxy, the process is slightly different:

  • 1. Open GOG Galaxy and navigate to the "Library" tab.
  • 2. Locate Terraria in your game library and click on the options menu (three dots) next to the game title.
  • 3. From the dropdown menu, select "Manage Installation" and then click on "Verify/Repair."

After completing the verification process, it is advisable to restart your system before proceeding to the next steps. This ensures that any changes made during the verification process are fully implemented.

Disable Game Modifications


While tModLoader is designed to work seamlessly with Terraria, it is essential to disable any other modifications or mods to isolate the error. Conflicting mods can cause unexpected behavior and lead to the "tModLoader" error. To disable mods within Terraria's mod menu, follow these steps:

  • 1. Launch Terraria and navigate to the main menu.
  • 2. Click on "Mods" and locate the mod you wish to disable.
  • 3. Click on the mod's name to deselect it, disabling the mod. Repeat this step for all non-tModLoader mods.

By temporarily removing all non-tModLoader mods, you can ensure that the error is not caused by conflicts between different mods. Additionally, disabling mods can help identify any potential issues with specific mods that may require further troubleshooting.

Reset Configurations


Resetting configurations can often resolve compatibility conflicts and errors that can occur with tModLoader. By resetting the configuration files, you essentially restore them to their default settings, eliminating any potential conflicts. The process to reset configurations varies depending on your operating system:

For Windows users:

  • - Open File Explorer and navigate to the following location: C:\Users\[Username]\Documents\My Games\Terraria\
  • - Locate the "Config" folder and rename it to "Config_Backup" or any other name of your choice.
  • - Launch Terraria, and a new "Config" folder will be created with default configurations.

For Mac users:

  • - Open Finder and navigate to the following location: /Users/[Username]/Library/Application Support/Terraria/
  • - Find the "Config" folder and rename it to "Config_Backup" or any other name of your choice.
  • - Start Terraria, and a new "Config" folder will be generated with default configurations.

For Linux users:

  • - Open your file manager and navigate to the following location: ~/.local/share/Terraria/
  • - Locate the "Config" folder and rename it to "Config_Backup" or any other name of your choice.
  • - Launch Terraria, and a new "Config" folder will be created with default configurations.

By resetting the configurations, you can eliminate any potential conflicts that may have arisen due to changes or modifications made to the original configurations.

Allow tModLoader




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Sometimes, antivirus software can mistakenly identify tModLoader as a threat and block its execution. This false positive can prevent tModLoader from running correctly and result in the "tModLoader" error. To ensure that tModLoader is allowed to run without interference from your antivirus software, you need to add an exception or whitelist it in your antivirus program settings.


The process of adding exceptions may vary depending on the antivirus program you are using. Here are some general guidelines for popular antivirus software:

Windows Defender:

  • - Open Windows Security by clicking on the Windows Start button and selecting "Settings" > "Update & Security" > "Windows Security."
  • - Click on "Virus & threat protection" and then select "Manage settings."
  • - Scroll down to the "Exclusions" section and click on "Add or remove exclusions."
  • - Click on "Add an exclusion" and select "Folder."
  • - Navigate to the location where you have installed tModLoader (usually the Terraria installation directory) and select it.
  • - Confirm the selection, and tModLoader will be added as an exception.

Avast Antivirus:

  • - Open Avast Antivirus and go to "Menu" > "Settings."
  • - Select "General" and navigate to the "Exceptions" section.
  • - Click on "Add Exception" and choose "Browse."
  • - Locate the folder where tModLoader is installed and select it.
  • - Click on "Add Exception" to add tModLoader as an exception.

Norton Security:

  • - Open Norton Security 
  • - Click on "Antivirus" and then select the "Scans and Risks" tab.
  • - Scroll down to the "Exclusions/Low Risks" section and click on "Configure" next to "Items to Exclude from Scans."
  • - Click on "Add" and select "Folder."
  • - Locate the folder where tModLoader is installed and select it.
  • - Click on "Add" to add tModLoader as an exclusion.

Remember, these are general guidelines, and the steps may vary depending on the specific antivirus software you are using. Consult the documentation or support resources provided by your antivirus software for detailed instructions on adding exceptions.

Install Visual C++ Dependencies


Missing or outdated Visual C++ dependencies can also lead to errors with tModLoader. Visual C++ redistributable packages are required for certain libraries to function correctly. If you encounter the "tModLoader" error, it is essential to ensure that you have the necessary Visual C++ dependencies installed on your system. Follow these steps to download and install the required Visual C++ redistributable package:

  • 1. Visit the official Microsoft Visual C++ downloads page via this link: [https://support.microsoft.com/en-us/topic/the-latest-supported-visual-c-downloads-2647da03-1eea-4433-9aff-95f26a218cc0]
  • 2. Scroll down to the section titled "The latest supported Visual C++ downloads" and locate the appropriate package for your system (32-bit or 64-bit).
  • 3. Click on the download link corresponding to your system, and the package will begin downloading.
  • 4. Once the download is complete, double-click on the downloaded file and follow the on-screen instructions to install the Visual C++ redistributable package.
  • 5. After installation, restart your system to ensure that the changes take effect.

By installing the necessary Visual C++ dependencies, you provide the required runtime libraries for tModLoader to function correctly, reducing the chances of encountering the "tModLoader" error.



In this comprehensive guide, we have addressed the common "tModLoader" error in Terraria and provided step-by-step solutions to fix it. We began by verifying the integrity of Terraria files, ensuring a clean installation. We then disabled other modifications and mods to isolate the error and reset configurations to eliminate potential conflicts. Additionally, we highlighted the importance of allowing tModLoader in antivirus software and provided general instructions for adding exceptions. Finally, we discussed the significance of installing Visual C++ dependencies to prevent errors with tModLoader. Remember to follow each step in order and restart your system if necessary. If you encounter any other technical issues or need further assistance, don't hesitate to reach out to the Terraria community or the developers for support. Now that you have the tools to fix the "tModLoader" error, you can once again dive into the enchanting world of Terraria, armed with an array of exciting mods and limitless possibilities. Happy gaming!



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