How to Install Claude Code Without npm Permission Errors - Complete Tutorial 2025

TL;DR

This tutorial teaches you to install Claude Code without permission errors in 15-25 minutes. You'll learn platform-specific installation methods, fix npm EACCES errors, and configure PATH correctly. Perfect for developers encountering common installation issues.

Key Takeaways:

Native curl installer eliminates most npm permission issues
User-level npm configuration prevents EACCES errors permanently
Shell-specific PATH setup ensures 'command not found' resolution
15-25 minutes total with 6 verification steps

Master Claude Code installation without encountering common npm permission errors. By completion, you'll have Claude Code running in your terminal and understand PATH configuration fundamentals. This guide covers multiple installation methods, PATH configurations, and real-world troubleshooting scenarios.

Tutorial Requirements

Prerequisites: Basic terminal knowledge
Time Required: 15-25 minutes active work
Tools Needed: Node.js 18+, Terminal, Browser
Outcome: Working Claude Code installation with proper PATH

What You'll Learn

Learning Outcomes

Skills and knowledge you'll master in this tutorial

Platform-Specific Installation
Essential

Master native curl installer for macOS and Linux. Configure WSL2 properly for Windows systems.

npm Permission Resolution
Practical

Fix EACCES errors without using sudo. Create user-level npm directories permanently.

PATH Configuration Mastery
Advanced

Configure shell-specific PATH correctly. Debug 'command not found' errors systematically.

Version Management
Applied

Use Volta or NVM for clean isolation. Prevent Node.js version conflicts completely.

Step-by-Step Tutorial

Complete Claude Code Installation

Follow these steps to install Claude Code without permission errors

Total time: 15-25 minutes

1
Step 1: Verify System Requirements
⏱ 2-3 minutes

Check Node.js version and operating system compatibility. This ensures your system meets Claude Code's Node.js 18+ requirement.

step-1.sh

# Check Node.js version
node --version
# Should output: v18.0.0 or higher

# Verify npm is installed
npm --version
# Expected output: 8.0.0 or higher

💡 Pro tip

Pro tip: Use node -v for shorter command. Install Node.js from nodejs.org if missing.

2
Step 2: Configure npm Directory
⏱ 3-5 minutes

Create user-level npm directory to prevent permission errors. This step eliminates most EACCES errors permanently.

step-2.sh

# Create npm global directory
mkdir ~/.npm-global

# Configure npm to use it
npm config set prefix '~/.npm-global'

# Add to PATH (for bash)
echo 'export PATH=~/.npm-global/bin:$PATH' >> ~/.bashrc
source ~/.bashrc

💡 Pro tip

Key insight: Never use sudo with npm. User directories prevent all permission issues.

3
Step 3: Install Claude Code
⏱ 5-7 minutes

Use the native installer for best results. This method provides automatic updates and better reliability.

step-3.sh

# Native installer (recommended)
curl -fsSL https://claude.ai/install.sh | bash

# Alternative: npm installation
npm install -g @anthropic-ai/claude-code

# Verify installation
claude --version

💡 Pro tip

Troubleshooting: Use curl method for more reliable installation than npm.

4
Step 4: Configure PATH for Your Shell
⏱ 3-5 minutes

Add Claude to PATH based on your shell type. Modern macOS uses Zsh while Linux typically uses Bash.

step-4.sh

# For Zsh (macOS)
echo 'export PATH="$HOME/.local/bin:$PATH"' >> ~/.zprofile
source ~/.zprofile

# For Bash (Linux)
echo 'export PATH="$HOME/.npm-global/bin:$PATH"' >> ~/.bashrc
source ~/.bashrc

# Verify PATH
echo $PATH | grep -E '(npm-global|.local)'

💡 Pro tip

Best practice: Use ~/.zprofile on macOS to prevent path_helper issues.

5
Step 5: Verify and Troubleshoot
⏱ 2-3 minutes

Run diagnostics to confirm successful installation. Claude doctor provides comprehensive system checks.

step-5.sh

# Run diagnostics
claude doctor

# Test basic functionality
claude
# Should open authentication in browser

# Check installation location
which claude
# Should show: /home/user/.npm-global/bin/claude

💡 Pro tip

Common issue: Clear browser cookies if authentication fails repeatedly.

6
Step 6: First Project Setup
⏱ 3-5 minutes

Initialize Claude Code in your project directory. Configure API key or browser authentication method.

step-6.sh

# Navigate to project
cd ~/your-project

# Start Claude Code
claude

# Authenticate via browser
# Select Claude Console option

# Test with simple command
# Type: "Read package.json and summarize"

💡 Pro tip

Best practice: Create CLAUDE.md file for project-specific configuration.

Key Concepts Explained

Understanding these concepts ensures you can adapt this tutorial to your specific needs and troubleshoot issues effectively.

Core Concepts Deep Dive

Essential knowledge for mastering this tutorial

npm tries to install global packages in system directories by default. System directories require root access that npm shouldn't have. This creates EACCES errors affecting many installations.

Key benefits of user directories:

No sudo required - eliminates permission cascades
Safer installation - protects system integrity
Easier uninstallation - simple directory removal

Practical Examples

Real-World Applications

See how to apply this tutorial in different contexts

Scenario: Fresh Ubuntu installation with no Node.js

Basic Implementation

basic-setup.sh

# Install Node.js first
curl -fsSL https://deb.nodesource.com/setup_20.x | sudo -E bash -
sudo apt install -y nodejs

# Configure npm directory
mkdir ~/.npm-global
npm config set prefix '~/.npm-global'
echo 'export PATH=~/.npm-global/bin:$PATH' >> ~/.bashrc
source ~/.bashrc

# Install Claude Code
npm install -g @anthropic-ai/claude-code

# Expected result:
# claude command available globally

// Verify installation programmatically
const { execSync } = require('child_process');

try {
const version = execSync('claude --version').toString();
console.log('Claude Code installed:', version);
} catch (error) {
console.error('Installation failed:', error.message);
}

Outcome: Working Claude Code installation in 10 minutes without permission errors

Scenario: macOS with Homebrew and multiple Node versions

Advanced Implementation

advanced-setup.ts

// Install with Volta for version management
interface InstallConfig {
nodeVersion: string;
claudeVersion?: string;
autoUpdate: boolean;
}

const config: InstallConfig = {
nodeVersion: '20.11.0',
claudeVersion: 'latest',
autoUpdate: true
};

// Installation script
const installCommands = [
'curl https://get.volta.sh | bash',
'volta install node@20',
'volta install @anthropic-ai/claude-code'
];

# Fix Homebrew symlink issues
brew unlink node
brew link --overwrite node

# Create manual symlink if needed
ln -sf /opt/homebrew/bin/claude /usr/local/bin/claude

# Add to Zsh profile
echo 'export PATH="/opt/homebrew/bin:$PATH"' >> ~/.zprofile
source ~/.zprofile

# Verify with full path
/opt/homebrew/bin/claude --version

Outcome: Clean installation with version isolation and Homebrew compatibility

Scenario: Windows 11 with WSL2 Ubuntu integration

Integration Pattern

wsl-setup.yml

# WSL2 configuration
workflow:
name: claude-code-wsl
steps:
  - name: install-wsl
    run: |
      wsl --install -d Ubuntu
      wsl --set-version Ubuntu 2
  
  - name: configure-nodejs
    run: |
      # Inside WSL
      sudo apt update
      sudo apt install nodejs npm
      
  - name: install-claude
    run: |
      mkdir ~/.npm-global
      npm config set prefix '~/.npm-global'
      export PATH="$HOME/.npm-global/bin:$PATH"
      npm install -g @anthropic-ai/claude-code

Outcome: Windows integration with 100% Unix compatibility for Claude Code

Troubleshooting Guide

Common Issues and Solutions

Issue 1: EACCES permission denied to /usr/local/lib
Solution: Never use sudo. Reconfigure npm prefix to ~/.npm-global directory. This fixes the root cause permanently.

Issue 2: claude: command not found after installation
Solution: Add npm global bin to PATH. Source your shell config file immediately.

Issue 3: Update installed. Restart to apply loop
Solution: Run claude migrate-installer command. Switches to native installer with working auto-updates.

Advanced Techniques

Professional Tips

Performance Optimization: Consider pinning to a stable version for consistent performance. Test newer versions in development first.

Security Best Practice: Always configure API keys as environment variables. Never commit keys to version control.

Scalability Pattern: Use Volta for team installations. Provides automatic version switching and improved shell startup.

Validation and Testing

Success Criteria

How to verify your implementation works correctly

Version Check
Required

claude --version returns version number within 1 second

Doctor Diagnostics
Important

claude doctor shows all green checks without warnings

Authentication Test
Critical

Browser opens for OAuth when running claude command

Project Integration
Essential

Claude reads local files without permission errors

Next Steps and Learning Path

Continue Your Learning Journey

Common questions about advancing from this tutorial

Q
What should I learn next after completing this installation?

Configure MCP servers to extend Claude Code functionality. Start with filesystem server for local file access. Then add GitHub and memory servers for complete workflow. The learning path progresses through: Basic commands → MCP servers → Custom configurations.

Q
How can I practice these installation skills?

Create Docker containers to test installations repeatedly. Practice different shell configurations and PATH setups. Join the Claude Code community for installation challenges and solutions.

Q
What are the most common installation mistakes beginners make?

The top 3 mistakes are: Using sudo with npm (creates permission cascades), editing wrong shell config file (causes PATH issues), and mixing Windows/WSL Node.js (breaks execution). Each mistake teaches critical system administration concepts.

Q
How do I adapt this for team installations?

Use Volta for consistent team environments. Create installation scripts with your configuration. Document your team's specific PATH requirements. This ensures everyone has identical Claude Code setups.

Quick Reference

Installation Cheat Sheet

Essential commands and concepts from this tutorial

Primary Install

curl -fsSL https://claude.ai/install.sh | bash

Native installer that handles updates automatically

npm Configuration

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

Sets user directory for global packages permanently

PATH Addition

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

Adds npm global binaries to shell PATH

Version Check

claude --version

Verifies installation and shows current version

Diagnostics

claude doctor

Comprehensive system and dependency check

Shell Reload

source ~/.bashrc

Applies PATH changes without terminal restart

Expand Your Knowledge

Continue learning with these related tutorials and guides

Configure MCP Servers for Claude Code

tutorial

Set up filesystem, GitHub, and memory servers. Enable local file access and repository integration in 20 minutes.

View Resource

Fix Claude Desktop MCP Server Errors

guide

Troubleshoot error -32000 and connection issues. Master MCP debugging and protocol understanding.

View Resource

Claude Code Configuration Guide

guide

Production-ready setup with CLAUDE.md files. Configure Claude Code for team usage.

View Resource

Node.js Documentation

documentation

Official Node.js documentation for version management and installation.

View Resource

WSL Setup Tutorial

guide

Complete Windows Subsystem for Linux setup. Unix environment on Windows machines.

View Resource

Community Installation Examples

example

User-submitted solutions and platform variations. Learn from community experiences.

View Resource

Tutorial Complete!

Congratulations! You've mastered Claude Code installation without permission errors.

What you achieved:

✅ Configured npm to avoid EACCES errors permanently
✅ Installed Claude Code with proper PATH configuration
✅ Learned platform-specific installation methods

Ready for more? Explore our tutorials collection or join our community to share your installation experience and help others overcome setup challenges.

Last updated: September 2025 | Found this helpful? Share it with developers struggling with Claude Code installation and explore more Claude tutorials.

How to Install Claude Code Without npm Permission Errors - Complete Tutorial 2025

TL;DR

Key Takeaways:

Native curl installer eliminates most npm permission issues
User-level npm configuration prevents EACCES errors permanently
Shell-specific PATH setup ensures 'command not found' resolution
15-25 minutes total with 6 verification steps

Tutorial Requirements

What You'll Learn

Learning Outcomes

Skills and knowledge you'll master in this tutorial

Platform-Specific Installation
Essential

Master native curl installer for macOS and Linux. Configure WSL2 properly for Windows systems.

npm Permission Resolution
Practical

Fix EACCES errors without using sudo. Create user-level npm directories permanently.

PATH Configuration Mastery
Advanced

Configure shell-specific PATH correctly. Debug 'command not found' errors systematically.

Version Management
Applied

Use Volta or NVM for clean isolation. Prevent Node.js version conflicts completely.

Step-by-Step Tutorial

Complete Claude Code Installation

Follow these steps to install Claude Code without permission errors

Total time: 15-25 minutes

1
Step 1: Verify System Requirements
⏱ 2-3 minutes

Check Node.js version and operating system compatibility. This ensures your system meets Claude Code's Node.js 18+ requirement.

step-1.sh

# Check Node.js version
node --version
# Should output: v18.0.0 or higher

# Verify npm is installed
npm --version
# Expected output: 8.0.0 or higher

💡 Pro tip

Pro tip: Use node -v for shorter command. Install Node.js from nodejs.org if missing.

2
Step 2: Configure npm Directory
⏱ 3-5 minutes

Create user-level npm directory to prevent permission errors. This step eliminates most EACCES errors permanently.

step-2.sh

# Create npm global directory
mkdir ~/.npm-global

# Configure npm to use it
npm config set prefix '~/.npm-global'

# Add to PATH (for bash)
echo 'export PATH=~/.npm-global/bin:$PATH' >> ~/.bashrc
source ~/.bashrc

💡 Pro tip

Key insight: Never use sudo with npm. User directories prevent all permission issues.

3
Step 3: Install Claude Code
⏱ 5-7 minutes

Use the native installer for best results. This method provides automatic updates and better reliability.

step-3.sh

# Native installer (recommended)
curl -fsSL https://claude.ai/install.sh | bash

# Alternative: npm installation
npm install -g @anthropic-ai/claude-code

# Verify installation
claude --version

💡 Pro tip

Troubleshooting: Use curl method for more reliable installation than npm.

4
Step 4: Configure PATH for Your Shell
⏱ 3-5 minutes

Add Claude to PATH based on your shell type. Modern macOS uses Zsh while Linux typically uses Bash.

step-4.sh

# For Zsh (macOS)
echo 'export PATH="$HOME/.local/bin:$PATH"' >> ~/.zprofile
source ~/.zprofile

# For Bash (Linux)
echo 'export PATH="$HOME/.npm-global/bin:$PATH"' >> ~/.bashrc
source ~/.bashrc

# Verify PATH
echo $PATH | grep -E '(npm-global|.local)'

💡 Pro tip

Best practice: Use ~/.zprofile on macOS to prevent path_helper issues.

5
Step 5: Verify and Troubleshoot
⏱ 2-3 minutes

Run diagnostics to confirm successful installation. Claude doctor provides comprehensive system checks.

step-5.sh

# Run diagnostics
claude doctor

# Test basic functionality
claude
# Should open authentication in browser

# Check installation location
which claude
# Should show: /home/user/.npm-global/bin/claude

💡 Pro tip

Common issue: Clear browser cookies if authentication fails repeatedly.

6
Step 6: First Project Setup
⏱ 3-5 minutes

Initialize Claude Code in your project directory. Configure API key or browser authentication method.

step-6.sh

# Navigate to project
cd ~/your-project

# Start Claude Code
claude

# Authenticate via browser
# Select Claude Console option

# Test with simple command
# Type: "Read package.json and summarize"

💡 Pro tip

Best practice: Create CLAUDE.md file for project-specific configuration.

Key Concepts Explained

Understanding these concepts ensures you can adapt this tutorial to your specific needs and troubleshoot issues effectively.

Core Concepts Deep Dive

Essential knowledge for mastering this tutorial

npm tries to install global packages in system directories by default. System directories require root access that npm shouldn't have. This creates EACCES errors affecting many installations.

Key benefits of user directories:

No sudo required - eliminates permission cascades
Safer installation - protects system integrity
Easier uninstallation - simple directory removal

Practical Examples

Real-World Applications

See how to apply this tutorial in different contexts

Scenario: Fresh Ubuntu installation with no Node.js

Basic Implementation

basic-setup.sh

# Install Node.js first
curl -fsSL https://deb.nodesource.com/setup_20.x | sudo -E bash -
sudo apt install -y nodejs

# Configure npm directory
mkdir ~/.npm-global
npm config set prefix '~/.npm-global'
echo 'export PATH=~/.npm-global/bin:$PATH' >> ~/.bashrc
source ~/.bashrc

# Install Claude Code
npm install -g @anthropic-ai/claude-code

# Expected result:
# claude command available globally

// Verify installation programmatically
const { execSync } = require('child_process');

try {
const version = execSync('claude --version').toString();
console.log('Claude Code installed:', version);
} catch (error) {
console.error('Installation failed:', error.message);
}

Outcome: Working Claude Code installation in 10 minutes without permission errors

Scenario: macOS with Homebrew and multiple Node versions

Advanced Implementation

advanced-setup.ts

// Install with Volta for version management
interface InstallConfig {
nodeVersion: string;
claudeVersion?: string;
autoUpdate: boolean;
}

const config: InstallConfig = {
nodeVersion: '20.11.0',
claudeVersion: 'latest',
autoUpdate: true
};

// Installation script
const installCommands = [
'curl https://get.volta.sh | bash',
'volta install node@20',
'volta install @anthropic-ai/claude-code'
];

# Fix Homebrew symlink issues
brew unlink node
brew link --overwrite node

# Create manual symlink if needed
ln -sf /opt/homebrew/bin/claude /usr/local/bin/claude

# Add to Zsh profile
echo 'export PATH="/opt/homebrew/bin:$PATH"' >> ~/.zprofile
source ~/.zprofile

# Verify with full path
/opt/homebrew/bin/claude --version

Outcome: Clean installation with version isolation and Homebrew compatibility

Scenario: Windows 11 with WSL2 Ubuntu integration

Integration Pattern

wsl-setup.yml

# WSL2 configuration
workflow:
name: claude-code-wsl
steps:
  - name: install-wsl
    run: |
      wsl --install -d Ubuntu
      wsl --set-version Ubuntu 2
  
  - name: configure-nodejs
    run: |
      # Inside WSL
      sudo apt update
      sudo apt install nodejs npm
      
  - name: install-claude
    run: |
      mkdir ~/.npm-global
      npm config set prefix '~/.npm-global'
      export PATH="$HOME/.npm-global/bin:$PATH"
      npm install -g @anthropic-ai/claude-code

Outcome: Windows integration with 100% Unix compatibility for Claude Code

Troubleshooting Guide

Common Issues and Solutions

Issue 1: EACCES permission denied to /usr/local/lib
Solution: Never use sudo. Reconfigure npm prefix to ~/.npm-global directory. This fixes the root cause permanently.

Issue 2: claude: command not found after installation
Solution: Add npm global bin to PATH. Source your shell config file immediately.

Issue 3: Update installed. Restart to apply loop
Solution: Run claude migrate-installer command. Switches to native installer with working auto-updates.

Advanced Techniques

Professional Tips

Performance Optimization: Consider pinning to a stable version for consistent performance. Test newer versions in development first.

Security Best Practice: Always configure API keys as environment variables. Never commit keys to version control.

Scalability Pattern: Use Volta for team installations. Provides automatic version switching and improved shell startup.

Validation and Testing

Success Criteria

How to verify your implementation works correctly

Version Check
Required

claude --version returns version number within 1 second

Doctor Diagnostics
Important

claude doctor shows all green checks without warnings

Authentication Test
Critical

Browser opens for OAuth when running claude command

Project Integration
Essential

Claude reads local files without permission errors

Next Steps and Learning Path

Continue Your Learning Journey

Common questions about advancing from this tutorial

Q
What should I learn next after completing this installation?

Q
How can I practice these installation skills?

Create Docker containers to test installations repeatedly. Practice different shell configurations and PATH setups. Join the Claude Code community for installation challenges and solutions.

Q
What are the most common installation mistakes beginners make?

Q
How do I adapt this for team installations?

Quick Reference

Installation Cheat Sheet

Essential commands and concepts from this tutorial

Primary Install

curl -fsSL https://claude.ai/install.sh | bash

Native installer that handles updates automatically

npm Configuration

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

Sets user directory for global packages permanently

PATH Addition

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

Adds npm global binaries to shell PATH

Version Check

claude --version

Verifies installation and shows current version

Diagnostics

claude doctor

Comprehensive system and dependency check

Shell Reload

source ~/.bashrc

Applies PATH changes without terminal restart

Expand Your Knowledge

Continue learning with these related tutorials and guides

Configure MCP Servers for Claude Code

tutorial

Set up filesystem, GitHub, and memory servers. Enable local file access and repository integration in 20 minutes.

View Resource

Fix Claude Desktop MCP Server Errors

guide

Troubleshoot error -32000 and connection issues. Master MCP debugging and protocol understanding.

View Resource

Claude Code Configuration Guide

guide

Production-ready setup with CLAUDE.md files. Configure Claude Code for team usage.

View Resource

Node.js Documentation

documentation

Official Node.js documentation for version management and installation.

View Resource

WSL Setup Tutorial

guide

Complete Windows Subsystem for Linux setup. Unix environment on Windows machines.

View Resource

Community Installation Examples

example

User-submitted solutions and platform variations. Learn from community experiences.

View Resource

Tutorial Complete!

Congratulations! You've mastered Claude Code installation without permission errors.

What you achieved:

✅ Configured npm to avoid EACCES errors permanently
✅ Installed Claude Code with proper PATH configuration
✅ Learned platform-specific installation methods

Ready for more? Explore our tutorials collection or join our community to share your installation experience and help others overcome setup challenges.

Last updated: September 2025 | Found this helpful? Share it with developers struggling with Claude Code installation and explore more Claude tutorials.

How to Install Claude Code Without npm Permission Errors - Complete Tutorial 2025

How to Install Claude Code Without npm Permission Errors - Complete Tutorial 2025

TL;DR

Key Takeaways:

Tutorial Requirements

What You'll Learn

Learning Outcomes

Platform-Specific InstallationEssential

npm Permission ResolutionPractical

PATH Configuration MasteryAdvanced

Version ManagementApplied

Step-by-Step Tutorial

Complete Claude Code Installation

1Step 1: Verify System Requirements⏱ 2-3 minutes

💡 Pro tip

2Step 2: Configure npm Directory⏱ 3-5 minutes

💡 Pro tip

3Step 3: Install Claude Code⏱ 5-7 minutes

💡 Pro tip

4Step 4: Configure PATH for Your Shell⏱ 3-5 minutes

💡 Pro tip

5Step 5: Verify and Troubleshoot⏱ 2-3 minutes

💡 Pro tip

6Step 6: First Project Setup⏱ 3-5 minutes

💡 Pro tip

Key Concepts Explained

Core Concepts Deep Dive

Why npm Permission Errors Occur−

When to Use Native vs npm Installation+

Common PATH Configuration Mistakes+

Practical Examples

Real-World Applications

Basic Implementation

Advanced Implementation

Integration Pattern

Troubleshooting Guide

Common Issues and Solutions

Advanced Techniques

Professional Tips

Validation and Testing

Success Criteria

Version CheckRequired

Doctor DiagnosticsImportant

Authentication TestCritical

Project IntegrationEssential

Next Steps and Learning Path

Continue Your Learning Journey

QWhat should I learn next after completing this installation?

QHow can I practice these installation skills?

QWhat are the most common installation mistakes beginners make?

QHow do I adapt this for team installations?

Quick Reference

Installation Cheat Sheet

Related Learning Resources

Expand Your Knowledge

Configure MCP Servers for Claude Code

Fix Claude Desktop MCP Server Errors

Claude Code Configuration Guide

Node.js Documentation

WSL Setup Tutorial

Community Installation Examples

Tutorial Complete!

On this page

Related Guides

Getting Started

How to Install Claude Code Without npm Permission Errors - Complete Tutorial 2025

How to Install Claude Code Without npm Permission Errors - Complete Tutorial 2025

TL;DR

Key Takeaways:

Tutorial Requirements

What You'll Learn

Learning Outcomes

Platform-Specific InstallationEssential

npm Permission ResolutionPractical

PATH Configuration MasteryAdvanced

Version ManagementApplied

Step-by-Step Tutorial

Complete Claude Code Installation

1Step 1: Verify System Requirements⏱ 2-3 minutes

💡 Pro tip

Platform-Specific Installation
Essential

npm Permission Resolution
Practical

PATH Configuration Mastery
Advanced

Version Management
Applied

1
Step 1: Verify System Requirements
⏱ 2-3 minutes

2
Step 2: Configure npm Directory
⏱ 3-5 minutes

3
Step 3: Install Claude Code
⏱ 5-7 minutes

4
Step 4: Configure PATH for Your Shell
⏱ 3-5 minutes

5
Step 5: Verify and Troubleshoot
⏱ 2-3 minutes

6
Step 6: First Project Setup
⏱ 3-5 minutes

Why npm Permission Errors Occur
−

When to Use Native vs npm Installation
+

Common PATH Configuration Mistakes
+

Version Check
Required

Doctor Diagnostics
Important

Authentication Test
Critical

Project Integration
Essential

Q
What should I learn next after completing this installation?

Q
How can I practice these installation skills?

Q
What are the most common installation mistakes beginners make?

Q
How do I adapt this for team installations?

Platform-Specific Installation
Essential

npm Permission Resolution
Practical

PATH Configuration Mastery
Advanced

Version Management
Applied

1
Step 1: Verify System Requirements
⏱ 2-3 minutes

2
Step 2: Configure npm Directory
⏱ 3-5 minutes

3
Step 3: Install Claude Code
⏱ 5-7 minutes

4
Step 4: Configure PATH for Your Shell
⏱ 3-5 minutes

5
Step 5: Verify and Troubleshoot
⏱ 2-3 minutes

6
Step 6: First Project Setup
⏱ 3-5 minutes

Why npm Permission Errors Occur
−

When to Use Native vs npm Installation
+

Common PATH Configuration Mistakes
+

Version Check
Required

Doctor Diagnostics
Important

Authentication Test
Critical

Project Integration
Essential

Q
What should I learn next after completing this installation?

Q
How can I practice these installation skills?

Q
What are the most common installation mistakes beginners make?

Q
How do I adapt this for team installations?