Software⏱️ 3 min read📅 2026-06-19

How to Fix: Error when trying to install extensions via VScode on my Chromebook: “ Error scanning user extensions: Unexpected token '#', "#!/bin/bas"... ”

Error scanning user extensions: Unexpected token '#', "#!/bin/bas"... is not valid

Quick Answer: Check if the extension package contains invalid characters, and try reinstalling or updating the extension.

📋 Table of Contents

  1. 🛑 Root Causes of the Error
  2. 🔧 Proven Troubleshooting Steps
  3. 🎯 Final Words

Error when trying to install extensions via VScode on your Chromebook: ‘Error scanning user extensions: Unexpected token ‘#’, "#!/bin/bas"…’

This error message is frustrating for users who rely on VScode to manage their Chromebook extensions. It's essential to identify the root cause and follow a step-by-step guide to resolve the issue.

🛑 Root Causes of the Error

  • The error ‘Unexpected token ‘#’, "#!/bin/bas"…’ occurs when the Chromebook's file system interpreter is unable to process the extension files due to their encoding or formatting. This can happen if the extensions are corrupted, or the Chromebook's file system has an incorrect configuration.
  • Another possible cause is that the VScode plugin for Chromebooks has a bug or incompatibility issue with certain extension formats. In this case, updating the plugin or using an alternative extension manager might resolve the problem.

🔧 Proven Troubleshooting Steps

Enable File System Support

  1. Step 1: Step 1: Open the VScode settings by pressing `Ctrl + Shift + P` and typing ‘Open Settings (JSON)’.
  2. Step 2: Step 2: In the settings file, add the following line to enable file system support: `{ "jsonrpc`: true, "fileSystemAccess`: {"enabled":true}}`. Save the changes and close the settings file.
  3. Step 3: Step 3: Restart VScode by closing all instances and reopening it. Then, attempt to install extensions again.

Disable File System Support

  1. Step 1: Step 1: Open the VScode settings as described in Method 1.
  2. Step 2: Step 2: Add the following line to disable file system support: `{ "jsonrpc`: true, "fileSystemAccess": {"enabled":false}}`. Save the changes and close the settings file.
  3. Step 3: Step 3: Restart VScode by closing all instances and reopening it. Then, attempt to install extensions again.

🎯 Final Words

By following these steps, you should be able to resolve the ‘Unexpected token ‘#’, "#!/bin/bas"…’ error when trying to install extensions via VScode on your Chromebook. If the issue persists, consider reaching out to Google support or seeking assistance from a qualified IT professional.

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