Quick Answer: Claude Code Not Working? If Claude Code is not working in VS Code, the problem is usually caused by authentication failures, extension conflicts, corrupted cache files, VS Code compatibility issues, service outages, or broken workspace configurations. Most users can fix the issue by reauthenticating Claude Code, clearing VS Code cache data, disabling conflicting extensions, updating VS Code, or reinstalling Claude Code.

Introduction

Claude Code has become one of the most powerful AI coding tools available to developers. Whether you are generating code, refactoring large projects, debugging complex systems, or automating repetitive tasks, Claude Code can significantly improve your productivity.

However, many developers eventually encounter frustrating issues such as:

• Claude Code not loading

• Claude Code crashing repeatedly

• Blank white screens

• Login failures

• Endless loading loops

• Missing autocomplete suggestions

• Multiple VS Code windows opening automatically

• Commands that stop responding

The difficult part is that these symptoms often look identical even when the underlying causes are completely different. A local installation problem can look exactly like a service outage. A corrupted cache can appear identical to an authentication issue. A broken VS Code extension may seem like Claude Code itself has stopped working.

This guide combines official troubleshooting recommendations, developer reports, community discussions, and real-world fixes to help you identify and resolve the problem quickly.

Symptom-to-Fix Quick Reference

Symptom	Most Likely Cause	First Fix to Try
Not loading	Auth failure / outage	Fix 1: Check outage, Fix 2: Reauth
White / blank screen	Cache corruption / GPU	Fix 6: Clear cache, Fix 10: Disable GPU
Login error	Expired token	Fix 2: Reauthenticate
Crash on startup	Extension conflict / outdated	Fix 9: Disable extensions, Fix 4: Update VS Code
Multiple windows	Workspace loop / session bug	Fix 7: Reset workspace
No autocomplete	Terminal config / extension	Fix 8: Reinstall + Fix 9
Endless spinner	Network / service outage	Fix 1: Check status page
Commands frozen	Session corruption	Fix 11: Clean reinstall

Why Claude Code Stops Working: Root Causes

Authentication Problems

Claude Code relies on valid authentication tokens. If your login session expires or becomes corrupted, Claude Code may:

• Fail to load entirely

• Show an endless loading indicator

• Refuse to execute commands

• Display authorization errors in the output panel

VS Code Extension Conflicts

Many developers run dozens of extensions simultaneously. Some extensions interfere with webviews, terminal integrations, authentication systems, and extension APIs — causing Claude Code to malfunction unexpectedly without any obvious connection between the conflicting extension and the failure.

Corrupted VS Code Cache

Corrupted cache files are one of the most common causes of white screens, blank pages, missing UI elements, and loading failures. This can happen after VS Code updates, unexpected shutdowns, or disk I/O errors during writes.

Service Outages

One of the most overlooked causes is a platform-side outage. When Claude services experience disruptions, users may see login failures, request timeouts, endless loading states, or frozen commands. Many developers waste hours troubleshooting local systems when the actual issue is a temporary backend outage.

Workspace and Session Problems

Some users report problems immediately after VS Code updates, workspace changes, session recovery attempts, or extension upgrades. Corrupted workspace state can prevent Claude Code from launching correctly even when the installation itself is intact.

Complete Fix Guide: 11 Solutions

Fix 1: Check for Service Outages First (Do This Before Anything Else)

Before changing anything locally, verify whether the issue is affecting other users. This single step can save you hours of unnecessary local troubleshooting.

Signs of an outage include:

• Multiple community reports appearing simultaneously on Reddit or GitHub

• Login failures affecting many users at the same time

• Requests timing out without explanation

• Previously working setups suddenly failing with no local changes

Where to check:

• status.anthropic.com for official Anthropic service status

• github.com/anthropics/claude-code/issues for active bug reports

• Reddit r/ClaudeAI for community-reported issues

Important If a widespread outage exists, local fixes will not resolve the problem. Wait for Anthropic to restore service and monitor the status page for updates.

Fix 2: Reauthenticate Claude Code

Authentication issues are among the most common causes of failures. Expired or corrupted tokens cause symptoms that look like crashes, blank screens, or network errors.

Step 1 — Log out completely:

claude auth logout

Step 2 — Log back in:

claude auth login

Step 3 — After completing authentication in the browser:

1. Restart VS Code completely (not just reload window)

2. Reopen your project workspace

3. Open the Claude Code panel and test a simple command

Pro Tip If you are behind a corporate VPN or proxy, authentication redirects may be blocked. Try reauthenticating on a direct internet connection first to isolate the issue.

Fix 3: Update Claude Code to the Latest Version

Older versions can develop compatibility problems after updates to VS Code or changes to Anthropic's backend APIs. Running an outdated version is a frequent but easily overlooked cause of sudden breakages.

npm install -g @anthropic-ai/claude-code@latest

Verify the update succeeded:

claude --version

Restart VS Code after updating. Check release notes at github.com/anthropics/claude-code/releases to see if your reported issue is a known bug with a targeted fix.

Fix 4: Update VS Code

Several reported issues occur after version mismatches between Claude Code's extension API requirements and the VS Code build currently installed. This is especially common in the period immediately after a major VS Code release.

1. Open VS Code

2. Click Help in the top menu

3. Select Check for Updates

4. Install all available updates

5. Restart VS Code completely

If you are on VS Code Insiders and experiencing instability, consider switching to the stable release channel temporarily.

Fix 5: Fix Claude Code White Screen or Blank Page

A blank white screen is one of the most frequently reported Claude Code issues. The webview that renders the Claude Code interface fails to initialize, leaving a white or empty panel.

Common Causes

• Webview rendering failures due to extension conflicts

• Corrupted VS Code cache preventing asset loading

• GPU acceleration interfering with webview compositing

• Content Security Policy violations from conflicting extensions

Solutions — Try in This Order

Solution A — Reload webviews (fastest fix):

1. Open Command Palette: Ctrl+Shift+P (Windows/Linux) or Cmd+Shift+P (Mac)

2. Type and run: Developer: Reload Webviews

3. Wait 10-15 seconds for the panel to reinitialize

Solution B — Restart VS Code window:

Developer: Reload Window

Solution C — Clear VS Code cache (see Fix 6 below)

Solution D — Disable GPU acceleration (see Fix 10 below)

Fix 6: Clear VS Code Cache

Corrupted cache files can prevent Claude Code from rendering correctly, loading assets, or maintaining authentication state. Clearing the cache is one of the highest-success-rate fixes for blank screens and loading failures.

Windows — Delete These Folders

%APPDATA%\Code\Cache

%APPDATA%\Code\CachedData

%APPDATA%\Code\CachedExtensionVSIXs

macOS — Run in Terminal

rm -rf ~/Library/Application\ Support/Code/Cache

rm -rf ~/Library/Application\ Support/Code/CachedData

Linux — Run in Terminal

rm -rf ~/.config/Code/Cache

rm -rf ~/.config/Code/CachedData

Note Clearing cache does not delete your settings, extensions, or project files. VS Code rebuilds the cache automatically on the next launch.

Restart VS Code after clearing the cache. Allow 30-60 seconds for the cache to rebuild before testing.

Fix 7: Stop Multiple VS Code Windows Opening

Some users report Claude Code triggering the launch of several VS Code windows automatically, often on startup or when running specific commands. This is a disruptive issue that can make VS Code effectively unusable.

Root Causes

• Workspace restoration loops trying to reopen previously closed sessions

• Corrupted workspace storage files causing re-initialization cycles

• Extension initialization bugs in Claude Code interacting with VS Code's window management

Step-by-Step Fix

1. Close every open VS Code instance — use Task Manager (Windows) or Activity Monitor (Mac) to confirm no VS Code processes remain

2. Open VS Code fresh without a project (from the Start Menu or Applications, not a recent workspace)

3. Disable session restoration: File > Preferences > Settings > search 'restore windows' > set to 'none'

4. Clear workspace cache: delete contents of %APPDATA%\Code\User\workspaceStorage (Windows) or ~/Library/Application Support/Code/User/workspaceStorage (Mac)

5. Reopen VS Code and test Claude Code in a new workspace

Fix 8: Fix Autocomplete Not Working

Some developers find that Claude Code's chat works normally and commands execute correctly, but autocomplete suggestions never appear in the editor. This is a separate subsystem from the main chat interface and has different failure modes.

Possible Causes

• Terminal integration failure preventing Claude Code from reading cursor context

• Conflicting extension intercepting autocomplete API calls

• Claude Code process not running in the correct terminal session

• Node.js version incompatibility with the Claude Code binary

Solutions

1. Restart VS Code completely and reopen the project

2. Check Node.js version compatibility — Claude Code requires Node.js 18 or higher: run node --version in terminal

3. Reinstall Claude Code (see Fix 11) to reset all configuration

4. Disable other AI coding extensions temporarily (GitHub Copilot, Tabnine, etc.) to check for conflicts

5. Verify the Claude Code terminal integration is active: run claude in the VS Code integrated terminal

Fix 9: Disable Conflicting Extensions

Extension conflicts are a surprisingly common cause of Claude Code failures because VS Code runs all extensions in a shared process. Any extension that interferes with webview rendering, terminal APIs, or authentication systems can cause Claude Code to malfunction without the conflict being obvious.

Systematic Isolation Process

1. Open Extensions panel (Ctrl+Shift+X)

2. Click the '...' menu at the top

3. Select Disable All Installed Extensions

4. Restart VS Code

5. Test Claude Code — if it works now, an extension is the cause

6. Re-enable extensions one at a time, restarting VS Code each time

7. When Claude Code breaks again, the last extension you enabled is the conflict

Extensions Most Commonly Reported to Conflict

• Other AI coding assistants (GitHub Copilot, Tabnine, Codeium)

• Heavy theme or UI customization extensions

• Extensions that modify terminal behavior

• Browser preview or webview extensions

Fix 10: Disable GPU Acceleration

GPU rendering issues can break VS Code's webview compositor, causing the Claude Code panel to render as white, black, or partially rendered. This is more common on systems with certain GPU drivers, virtual machines, or remote desktop connections.

Launch VS Code with GPU acceleration disabled:

Windows / Linux

code --disable-gpu

macOS

open -a "Visual Studio Code" --args --disable-gpu

If Claude Code renders correctly with GPU disabled, the issue is GPU-related. You can make this permanent by adding --disable-gpu to your VS Code shortcut arguments, or by adding it to the argv.json file:

// In Help > Runtime Arguments (argv.json):

"disable-hardware-acceleration": true

Fix 11: Perform a Clean Reinstall

When all other fixes fail, a clean reinstall removes corrupted binaries, broken configuration files, and stale authentication tokens in a single operation. This is the nuclear option but has the highest success rate for persistent issues.

Step 1 — Uninstall Claude Code

npm uninstall -g @anthropic-ai/claude-code

Step 2 — Remove All Configuration and Cache

macOS / Linux:

rm -rf ~/.claude

Windows (run in Command Prompt):

rmdir /s /q %USERPROFILE%\.claude

Step 3 — Clear npm Cache

npm cache clean --force

Step 4 — Reinstall Fresh

npm install -g @anthropic-ai/claude-code

Step 5 — Reauthenticate

claude auth login

After reinstalling, open VS Code, load your project, and test Claude Code before re-enabling any other extensions.

Common Error Messages Explained

Claude Code Stuck on Loading / Endless Spinner

Usually caused by authentication session expiry, an active Anthropic service outage, or network restrictions (corporate firewall, VPN) blocking the WebSocket connection Claude Code uses. Check status.anthropic.com first. If status is normal, reauthenticate and test on an unrestricted network connection.

Claude Code White Screen / Blank Panel

Typically related to cache corruption or a webview rendering failure. Start with Developer: Reload Webviews. If that does not work, clear the VS Code cache (Fix 6). If still failing, disable GPU acceleration (Fix 10). If all three fail, proceed to clean reinstall (Fix 11).

Claude Code Login Failed / Authentication Error

Almost always fixed by reauthentication (Fix 2). If reauthentication itself fails, check whether you are behind a proxy or firewall that blocks OAuth redirects. Try on a mobile hotspot to confirm the network is not the issue. If login fails everywhere, check status.anthropic.com for account-level service issues.

Claude Code Crashes on Startup

Usually caused by extension conflicts or outdated software. Run the extension isolation process (Fix 9) to identify conflicting extensions. If the crash persists with all extensions disabled, update VS Code (Fix 4) and Claude Code (Fix 3). If still crashing, perform a clean reinstall (Fix 11).

EACCES / Permission Denied on npm Install

This means npm does not have permission to install global packages. Fix by configuring npm's global directory to a location your user owns:

mkdir ~/.npm-global

npm config set prefix '~/.npm-global'

Then add the following to your ~/.bashrc or ~/.zshrc:

export PATH=~/.npm-global/bin:$PATH

Reload the shell and retry the install.

How to Prevent Future Problems

Following these practices significantly reduces the frequency of Claude Code issues:

• Keep Claude Code updated: Run npm install -g @anthropic-ai/claude-code@latest weekly or whenever you notice VS Code updates.

• Update VS Code on its schedule: Do not delay VS Code updates — extension compatibility issues are more common on outdated builds.

• Limit competing AI extensions: Running multiple AI coding assistants simultaneously creates the highest risk of conflicts. Pick one and disable the others.

• Clear cache monthly: A monthly cache clear prevents slow accumulation of corruption that eventually causes failures.

• Bookmark the status page: status.anthropic.com should be your first stop for any sudden breakage — before spending time on local troubleshooting.

• Use separate VS Code profiles: VS Code's profile feature lets you create an isolated environment for AI development tools, reducing conflict surface area with other extensions.

• Check Node.js compatibility: Claude Code requires Node.js 18+. After major Node.js upgrades, verify compatibility before assuming Claude Code is broken.

Frequently Asked Questions

Why is Claude Code not working in VS Code?

The most common causes are authentication failures, cache corruption, extension conflicts, VS Code version mismatches, service outages, and outdated Claude Code installations. Start by checking status.anthropic.com, then work through reauthentication, cache clearing, and extension isolation in that order.

Can a Claude outage make Claude Code appear completely broken?

Yes. Platform-wide Anthropic service disruptions cause loading failures, login errors, frozen commands, and request timeouts that are indistinguishable from local installation problems. Always check status.anthropic.com before beginning local troubleshooting — a five-second check can save hours of unnecessary debugging.

Why does Claude Code open multiple VS Code windows?

This is usually caused by workspace restoration loops, corrupted session data in workspaceStorage, or extension initialization bugs triggering repeated window creation. Clearing the workspaceStorage directory and disabling automatic window restoration in VS Code settings resolves this in most cases.

Why is Claude Code showing a white screen?

White screens are typically caused by webview rendering failures, VS Code cache corruption, GPU acceleration conflicts, or extension interference with the webview compositor. Use Developer: Reload Webviews first. If that fails, clear the cache. If cache clearing fails, disable GPU acceleration and test.

Does reinstalling Claude Code solve most problems?

A clean reinstall (Fix 11) resolves the majority of persistent issues that survive reauthentication and cache clearing. It removes corrupted binaries, broken configuration, and stale auth tokens simultaneously. For issues that survive all earlier fixes, a clean reinstall is the correct next step.

What Node.js version does Claude Code require?

Claude Code requires Node.js 18 or higher. Verify your version by running node --version in the terminal. If you are on an older version, upgrade Node.js at nodejs.org and then reinstall Claude Code.

Why is Claude Code autocomplete not working when chat works fine?

Chat and autocomplete are separate subsystems. Autocomplete failures while chat works usually indicate a terminal integration problem, a Node.js version incompatibility, or a conflict with another autocomplete extension. Reinstalling Claude Code and ensuring no other AI completion tools are active simultaneously resolves this in most cases.

Final Verdict

Summary When Claude Code stops working, the problem is not always your setup. Many reported issues stem from authentication failures, service outages, cache corruption, extension conflicts, and VS Code compatibility problems — not from something you did wrong.

Follow this order for fastest resolution:

1. Check status.anthropic.com for outages (30 seconds, saves hours)

2. Reauthenticate with claude auth logout then claude auth login

3. Clear VS Code cache for your operating system

4. Update both Claude Code and VS Code to current versions

5. Run the extension isolation process to identify conflicts

6. Disable GPU acceleration if you see rendering issues

7. Perform a clean reinstall as a last resort

In most cases, one of these fixes restores Claude Code functionality within minutes and gets you back to coding without unnecessary downtime.

Schema FAQ — JSON-LD Structured Data

Paste into your page <head> for FAQ rich results in Google Search:

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