Removing Duplicate Extension in Visual Studio Code

Introduction

Visual Studio Code (VSCode), a popular code editor, occasionally encounters hiccups with its extensions. A common issue is when an extension, such as "Database Client," appears not installed in the VSCode marketplace, despite being present in the system. This can lead to accidental installation of duplicate versions, causing display overlaps and functionality problems. This article provides a step-by-step guide on how to manually resolve such issues.

Identifying the Issue

You may notice that an extension you've previously installed (e.g., "Database Client") is listed as not installed in the VSCode marketplace. Attempting to reinstall it can result in having two instances of the same extension, leading to conflicts and errors.

Solution: Manual Deletion and Reinstallation

Step 1: Locate the Extensions Directory

Extensions in VSCode are stored in the ~/.vscode/extensions directory. Access this directory either through the Finder or by using the Terminal with the command:

bash
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open ~/.vscode/extensions

Step 2: Identify and Delete the Problematic Extension

In the extensions directory, find the folder(s) related to the problematic extension. The folder name typically includes the extension name and its publisher. For "Database Client," look for a folder with a name similar to publisherName.database-client.

Once located, delete the folder. This can be done by right-clicking and selecting "Move to Trash" or using the Terminal with:

bash
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rm -rf ~/.vscode/extensions/publisherName.database-client

Step 3: Restart VSCode

After deleting the extension folder, restart VSCode. This ensures that the editor refreshes its extensions list and removes any residual settings related to the deleted extension.

Step 4: Reinstall the Extension

Now, return to the VSCode marketplace and reinstall the "Database Client" extension. It should install correctly without any duplicates.

Conclusion

Dealing with duplicate or improperly installed extensions in VSCode can be frustrating. However, by manually deleting the extension files and reinstalling them, most issues can be resolved. Always ensure that you delete the correct extension folder to avoid accidentally removing essential extensions.

Additional Tips

• Backup First: Before deleting any files, consider backing up your VSCode settings and extensions.
• Check for Updates: Sometimes, updating VSCode or the extensions can resolve conflicts without manual intervention.
• Consult Documentation: If issues persist, consult the extension's documentation or support channels for specific troubleshooting steps.

Remember, careful navigation and manipulation of the extensions directory can often rectify most installation and duplication issues in VSCode.