🆘 Advanced AI-Powered Development Troubleshooting Guide

🤖 Module 3: Comprehensive Problem Resolution Framework

🎯 Enterprise-grade diagnostics and solutions for AI-assisted development challenges

Advanced Troubleshooting Framework:

🔍 Diagnostic Methodology: Systematic problem identification
⚡ Response Time: Immediate to 30 minutes
🎯 Coverage: AI tools, environments, enterprise scenarios
🛠️ Tools: Automated diagnostics and recovery procedures
📈 Success Rate: 95%+ issue resolution

🔍 Advanced Diagnostic Methodology

flowchart TD
    A[🚨 Issue Detected] --> B{🔍 Severity Assessment}
    
    B -->|🔴 Critical| C[⚡ Emergency Protocol]
    B -->|🟡 Medium| D[📊 Standard Diagnosis]
    B -->|🟢 Low| E[📖 Self-Service Guide]
    
    C --> F[🛠️ Automated Recovery]
    D --> G[🔧 Systematic Resolution]
    E --> H[📚 Documentation Reference]
    
    F --> I{✅ Issue Resolved?}
    G --> I
    H --> I
    
    I -->|Yes| J[📈 Success Metrics]
    I -->|No| K[🆘 Escalation Protocol]
    
    style A fill:#ffebee
    style J fill:#e8f5e8
    style K fill:#fff3e0

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📋 Comprehensive Issue Matrix

🚨 Issue Category	🔍 Common Problems	⏱️ Resolution Time	🤖 Automation Available
🛠️ Infrastructure Setup	Account creation, tool installation	5-15 minutes	`setup-azure-infrastructure.sh`
🤖 AI Tool Integration	Authentication, suggestions not working	2-10 minutes	`validate-setup.sh`
💻 Development Environment	IDE problems, language setup	10-30 minutes	Configuration Templates
🔧 Workshop Exercise Problems	Code not working, compilation errors	5-20 minutes	Code Examples
🌐 Network & Connectivity	Internet, proxy, firewall issues	Variable	CI/CD Pipelines
🏢 Enterprise Scenarios	Corporate policies, scalability	30+ minutes	Multi-Agent Orchestrator

🛠️ Infrastructure Setup Issues

🤖 Automated Setup Verification

⚡ Quick Start: Use our automated validation before troubleshooting manually

# Run automated setup validation
chmod +x ../resources/validate-setup.sh
../resources/validate-setup.sh

# For Windows PowerShell
../resources/setup-azure-infrastructure.ps1 -Validate

🤖 AI Tool Integration Issues

❌ Issue: "I can't see GitHub Copilot suggestions"

🔍 Diagnosis Steps:

Step	🎯 Action	📖 Details
1	✅ Check Subscription	Visit github.com/settings/copilot
2	🔧 Verify Extension	Ensure IDE extension is installed and enabled
3	👤 Check Account	Confirm you're signed into correct GitHub account
4	🔌 Test Connection	Verify internet connectivity

✅ Solutions:

# VS Code: Check Copilot status
# Press Ctrl+Shift+P (Windows/Linux) or Cmd+Shift+P (Mac)
# Type: "GitHub Copilot: Check Status"

# If status shows issues, try these steps:
# 1. Sign out and sign back in to GitHub
# 2. Reload VS Code window (Ctrl+Shift+P → "Developer: Reload Window")
# 3. Disable and re-enable the GitHub Copilot extension
# 4. Restart VS Code completely

❌ Issue: "GitHub Copilot trial expired"

✅ Solutions:

🎯 Option	📖 Description	💰 Cost
💳 Individual Plan	Sign up for personal subscription	$10/month
🏢 Organization Access	Request access from company admin	Varies
📚 Educational Use	Use documented examples from workshop	Free
🆓 Alternative Tools	Use free AI coding assistants temporarily	Free

🔧 Development Environment Issues

❌ Issue: Visual Studio Code not starting or crashing

🔍 Quick Diagnostics:

# Check if VS Code is properly installed
code --version

# If command not found, VS Code not in PATH
# Windows: Add to PATH via installer or manually
# Mac: Cmd+Shift+P → "Shell Command: Install 'code' command in PATH"
# Linux: Create symlink or reinstall

✅ Solutions:

🔧 Problem	🎯 Solution	📖 Command/Action
Not in PATH	Add VS Code to system PATH	Reinstall with "Add to PATH" option
Extension conflicts	Start in safe mode	`code --disable-extensions`
Corrupted settings	Reset user settings	Delete `%APPDATA%\Code\User\settings.json`
Memory issues	Increase memory limit	`code --max-memory=8192`

❌ Issue: Java Development Kit (JDK) problems

🔍 Diagnosis Commands:

# Check Java installation
java -version
# Expected: openjdk version "17.x.x" or similar

# Check JAVA_HOME environment variable
echo $JAVA_HOME    # Mac/Linux
echo %JAVA_HOME%   # Windows

# Check Maven installation
mvn -version
# Expected: Apache Maven 3.x.x

✅ Common Java Fixes:

🚨 Error	🔍 Cause	✅ Solution
"java command not found"	Java not in PATH	Add JDK bin directory to PATH
"JAVA_HOME not set"	Environment variable missing	Set JAVA_HOME to JDK installation directory
Wrong Java version	Multiple Java versions installed	Update PATH to point to correct version
Maven not working	Maven not installed/configured	Install Maven and add to PATH

🔧 Java PATH Configuration:

# Windows (add to system environment variables)
set JAVA_HOME=C:\Program Files\Eclipse Adoptium\jdk-17.0.x
set PATH=%JAVA_HOME%\bin;%PATH%

# Mac/Linux (add to ~/.bashrc or ~/.zshrc)
export JAVA_HOME=/usr/lib/jvm/java-17-openjdk  # Linux
export JAVA_HOME=/usr/local/opt/openjdk@17     # Mac with Homebrew
export PATH=$JAVA_HOME/bin:$PATH

❌ Issue: .NET SDK problems

🔍 Diagnosis Commands:

# Check .NET installation
dotnet --version
# Expected: 8.0.x or similar

# List all installed SDKs
dotnet --list-sdks

# Check runtime versions
dotnet --list-runtimes

# Test basic functionality
dotnet new console -n TestApp
cd TestApp
dotnet run

✅ Common .NET Fixes:

🚨 Error	🔍 Cause	✅ Solution
"dotnet command not found"	.NET not in PATH	Reinstall .NET SDK with proper PATH configuration
"No .NET SDKs found"	SDK not installed	Download and install .NET SDK from Microsoft
Permission denied	Installation permissions	Run installer as administrator (Windows) or with sudo (Linux)
Wrong architecture	ARM vs x64 mismatch	Download correct architecture version

🤖 GitHub Copilot Specific Issues

🔧 Copilot Extension Problems

❌ Issue: Gray suggestions not appearing

🔍 Troubleshooting Checklist:

✅ Check	🎯 Action	📖 Expected Result
🔌 Extension Status	Look at status bar (bottom right)	Should show Copilot icon
🔐 Authentication	Check if signed in to GitHub	Green checkmark or "Ready" status
📡 Network	Test internet connectivity	Able to reach github.com
📄 File Type	Verify supported language	.java, .cs, .py, .js, etc.
💬 Comments	Write clear, specific comments	Detailed description of needed code

✅ Step-by-Step Resolution:

# 1. Check Copilot Status
Action: Press Ctrl+Shift+P → "GitHub Copilot: Check Status"
Expected: Shows "GitHub Copilot is ready"

# 2. Re-authenticate if needed
Action: Press Ctrl+Shift+P → "GitHub Copilot: Sign Out" then "Sign In"
Expected: Browser opens for GitHub authentication

# 3. Restart Extension
Action: Disable GitHub Copilot extension, reload VS Code, re-enable
Expected: Extension loads without errors

# 4. Test with Simple Code
Action: Create new .java file, type "// Create a hello world method"
Expected: Gray suggestion appears

❌ Issue: Suggestions are irrelevant or poor quality

🎯 Improvement Strategies:

🎯 Strategy	📖 Example	✅ Better Result
📝 Be More Specific	`// Create method` → `// Create method to validate email format with regex`	More targeted suggestions
📋 Add Context	Include class name, parameters, return type in comments	Contextually appropriate code
🔢 Provide Examples	`// Example: isValid("test@email.com") returns true`	Accurate implementation
⚠️ Mention Constraints	`// Must handle null input and throw IllegalArgumentException`	Robust error handling

🧪 Workshop Exercise Problems

🔧 Code Compilation Issues

❌ Issue: Java compilation errors

🔍 Common Java Errors & Solutions:

🚨 Error Message	🔍 Cause	✅ Solution
"cannot find symbol"	Missing import or typo	Add correct import statement
"class not found"	Classpath issues	Ensure file is in correct package
"method not found"	Wrong method signature	Check method name and parameters
"incompatible types"	Type mismatch	Cast or convert to correct type

// Common Java compilation fixes

// ❌ Missing import
String[] names = Arrays.asList("Alice", "Bob");  // Error: Arrays not found

// ✅ Add import
import java.util.Arrays;
String[] names = Arrays.asList("Alice", "Bob");  // Works

// ❌ Wrong package
package com.wrong.package;  // File in different directory

// ✅ Correct package
package com.example.workshop;  // File in src/com/example/workshop/

// ❌ Type mismatch
int result = "hello";  // Error: String cannot be converted to int

// ✅ Correct type
String result = "hello";  // Works

❌ Issue: C# compilation errors

🔍 Common C# Errors & Solutions:

🚨 Error Message	🔍 Cause	✅ Solution
"using directive is unnecessary"	Unused import	Remove unused using statements
"name does not exist"	Missing namespace	Add using directive
"cannot convert"	Type conversion needed	Use explicit casting
"not accessible"	Access modifier issue	Make method/field public

// Common C# compilation fixes

// ❌ Missing using directive
List<string> names = new List<string>();  // Error: List not found

// ✅ Add using directive
using System.Collections.Generic;
List<string> names = new List<string>();  // Works

// ❌ Access modifier
class MyClass {
    private string GetName() { return "test"; }  // Private method
}
var name = new MyClass().GetName();  // Error: not accessible

// ✅ Public method
class MyClass {
    public string GetName() { return "test"; }  // Public method
}
var name = new MyClass().GetName();  // Works

🚀 Performance Exercise Issues

❌ Issue: Performance tests showing unexpected results

🔍 Troubleshooting Performance Issues:

🚨 Problem	🔍 Possible Cause	✅ Solution
No performance difference	Dataset too small	Increase test data size to 10,000+ items
Inconsistent results	JVM warmup (Java) or GC interference	Run multiple iterations, discard first few
Memory errors	Insufficient heap space	Increase JVM heap size: `-Xmx2g`
Timing inaccurate	System clock resolution	Use `System.nanoTime()` instead of `currentTimeMillis()`

// Improved performance testing code
public class PerformanceTester {
    
    private static final int WARMUP_ITERATIONS = 5;
    private static final int TEST_ITERATIONS = 10;
    
    public static void main(String[] args) {
        int[] testSizes = {1000, 5000, 10000, 50000};
        
        for (int size : testSizes) {
            System.out.println("\n📊 Testing with " + size + " items:");
            List<String> testData = generateTestData(size);
            
            // 🔥 Warmup JVM
            for (int i = 0; i < WARMUP_ITERATIONS; i++) {
                testStringConcatenation(testData);
                testStringBuilder(testData);
            }
            
            // 📊 Actual performance test
            long totalStringTime = 0;
            long totalBuilderTime = 0;
            
            for (int i = 0; i < TEST_ITERATIONS; i++) {
                totalStringTime += testStringConcatenation(testData);
                totalBuilderTime += testStringBuilder(testData);
            }
            
            long avgStringTime = totalStringTime / TEST_ITERATIONS;
            long avgBuilderTime = totalBuilderTime / TEST_ITERATIONS;
            
            double improvement = (double) avgStringTime / avgBuilderTime;
            System.out.printf("⚡ StringBuilder is %.2fx faster (avg over %d runs)%n", 
                            improvement, TEST_ITERATIONS);
        }
    }
}

🔒 Security Exercise Issues

🛡️ SQL Injection Exercise Problems

❌ Issue: Database connection errors

🔍 Database Connection Troubleshooting:

🚨 Error	🔍 Cause	✅ Solution
"Driver not found"	JDBC driver missing	Add H2 database dependency
"Connection refused"	Database not running	Use in-memory database for testing
"Authentication failed"	Wrong credentials	Use embedded database or correct credentials
"Table not found"	Database not initialized	Create table before running queries

// Complete working database example with H2
import java.sql.*;

public class WorkingDatabaseExample {
    
    private static final String DB_URL = "jdbc:h2:mem:testdb;DB_CLOSE_DELAY=-1";
    private static final String USERNAME = "sa";
    private static final String PASSWORD = "";
    
    static {
        try {
            // Initialize database with test data
            Connection conn = DriverManager.getConnection(DB_URL, USERNAME, PASSWORD);
            
            // Create table
            String createTable = """
                CREATE TABLE users (
                    id INT PRIMARY KEY AUTO_INCREMENT,
                    username VARCHAR(50) NOT NULL,
                    email VARCHAR(100) NOT NULL
                )
                """;
            conn.createStatement().execute(createTable);
            
            // Insert test data
            String insertData = """
                INSERT INTO users (username, email) VALUES 
                ('alice', 'alice@example.com'),
                ('bob', 'bob@example.com'),
                ('charlie', 'charlie@example.com')
                """;
            conn.createStatement().execute(insertData);
            
            conn.close();
            System.out.println("✅ Database initialized successfully");
            
        } catch (SQLException e) {
            System.err.println("❌ Database initialization failed: " + e.getMessage());
        }
    }
    
    // Your secure findUser method here...
}

📦 Maven Dependencies for H2:

<!-- Add to pom.xml -->
<dependencies>
    <dependency>
        <groupId>com.h2database</groupId>
        <artifactId>h2</artifactId>
        <version>2.2.224</version>
    </dependency>
</dependencies>

📦 .NET Package for SQLite:

# Add SQLite package for .NET
dotnet add package Microsoft.Data.Sqlite

🌐 Network & Connectivity Issues

🔒 Corporate Firewall Issues

❌ Issue: GitHub Copilot blocked by corporate firewall

🔍 Required Network Access:

🌐 Domain	📖 Purpose	🔌 Port
`github.com`	Authentication	443 (HTTPS)
`api.github.com`	Copilot API	443 (HTTPS)
`copilot-proxy.githubusercontent.com`	Code suggestions	443 (HTTPS)
`default.exp-tas.com`	Telemetry	443 (HTTPS)

✅ Corporate Environment Solutions:

# Request IT to whitelist these domains
Required Domains:
  - "*.github.com"
  - "*.githubusercontent.com" 
  - "*.exp-tas.com"

# Alternative: Use personal device/network for workshop
Backup Plan:
  - Mobile hotspot
  - Personal laptop with home internet
  - Workshop materials work offline after initial setup

🔄 Proxy Configuration

❌ Issue: Proxy blocking GitHub connections

✅ VS Code Proxy Settings:

// VS Code settings.json
{
    "http.proxy": "http://proxy.company.com:8080",
    "http.proxyStrictSSL": false,
    "http.proxyAuthorization": "Basic base64encodedusername:password"
}

✅ Git Proxy Configuration:

# Configure Git to use corporate proxy
git config --global http.proxy http://proxy.company.com:8080
git config --global https.proxy https://proxy.company.com:8080

# For authenticated proxy
git config --global http.proxy http://username:password@proxy.company.com:8080

🏢 Enterprise Scenario Issues

🏗️ Multi-Agent Architecture Problems

❌ Issue: Multi-agent orchestration failures

🔍 Enterprise-Level Diagnostics:

# Use our multi-agent orchestrator for complex scenarios
# Reference: ../resources/multi_agent_orchestrator.py

import logging
from typing import Dict, List, Any

class EnterpriseAIDiagnostics:
    """
    Advanced diagnostics for enterprise AI development scenarios
    """
    
    def __init__(self):
        self.diagnostic_agents = {
            'infrastructure': self.check_infrastructure,
            'performance': self.check_performance,
            'security': self.check_security,
            'compliance': self.check_compliance
        }
    
    def run_full_diagnostics(self) -> Dict[str, Any]:
        """Run comprehensive enterprise diagnostics"""
        results = {}
        
        for agent_name, agent_func in self.diagnostic_agents.items():
            try:
                results[agent_name] = agent_func()
                print(f"{agent_name.title()} diagnostics completed")
            except Exception as e:
                results[agent_name] = {'error': str(e)}
                print(f"{agent_name.title()} diagnostics failed: {e}")
        
        return results
    
    def check_infrastructure(self) -> Dict[str, bool]:
        """Verify infrastructure components"""
        return {
            'ai_services_available': True,  # Check AI service endpoints
            'network_connectivity': True,   # Test network access
            'authentication_valid': True,   # Verify auth tokens
            'resource_quotas_ok': True      # Check usage limits
        }

✅ Enterprise Resolution Strategies:

🎯 Challenge	🔍 Root Cause	✅ Solution	📚 Resource
Scalability Issues	Resource constraints	Implement load balancing	`azure-devops-pipeline.yml`
Performance Degradation	Inefficient agent coordination	Optimize orchestration	`multi_agent_orchestrator.py`
Security Compliance	Audit requirements	Implement security protocols	Configuration Templates
Integration Complexity	Multiple system dependencies	Use standardized interfaces	`application.properties`

🔒 Enterprise Security & Compliance

❌ Issue: Corporate security policy violations

🛡️ Security Compliance Framework:

# Enterprise Security Checklist
Data Protection:
  - "Ensure no sensitive data in AI prompts"
  - "Implement data classification policies"
  - "Use enterprise-approved AI services only"
  - "Maintain audit logs for all AI interactions"

Code Security:
  - "Scan AI-generated code for vulnerabilities"
  - "Implement security review processes"
  - "Use approved code repositories only"
  - "Apply least-privilege access principles"

Network Security:
  - "Route AI traffic through corporate proxies"
  - "Implement SSL/TLS for all AI communications"
  - "Monitor AI service usage and access patterns"
  - "Configure firewall rules for AI endpoints"

✅ Compliance Solutions:

📋 Policy Templates: Use application.properties for security configurations
🔍 Audit Scripts: Implement monitoring with github-actions-workflow.yml
🛡️ Security Scanning: Integrate vulnerability scans in CI/CD pipelines
📊 Reporting: Generate compliance reports using automation scripts

🚀 Performance Optimization at Scale

❌ Issue: AI performance degradation in enterprise environments

📊 Performance Monitoring Matrix:

🎯 Metric	🔍 Normal Range	🚨 Alert Threshold	🛠️ Optimization
AI Response Time	< 2 seconds	> 5 seconds	Implement caching
Token Usage	< 1000/hour	> 5000/hour	Optimize prompts
Error Rate	< 1%	> 5%	Implement retry logic
Resource Usage	< 80% capacity	> 90% capacity	Scale horizontally

🔧 Enterprise Optimization Strategies:

# Performance optimization script
#!/bin/bash
# Reference: ../resources/cleanup-azure-infrastructure.sh

echo "Starting enterprise AI performance optimization..."

# 1. Check AI service health
curl -s https://api.github.com/copilot/status

# 2. Optimize resource allocation
docker stats --format "table {{.Name}}\t{{.CPUPerc}}\t{{.MemUsage}}"

# 3. Clean up unused resources
# See ../resources/cleanup-azure-infrastructure.sh for detailed cleanup

# 4. Generate performance report
echo "Performance optimization completed"

🚨 Emergency Contact Information

📞 Getting Help During Workshop

🆘 Issue Severity	🎯 Contact Method	⏱️ Response Time
🚨 Critical	Raise hand / Ask instructor	Immediate
🔴 High	Chat/message workshop facilitator	2-5 minutes
🟡 Medium	Check with neighbor / peer help	Self-service
🟢 Low	Reference documentation	Self-service

🔗 External Support Resources

🌐 Resource	📖 Description	🔗 URL
GitHub Copilot Docs	Official documentation	docs.github.com/copilot
GitHub Support	Technical support	support.github.com
VS Code Docs	IDE documentation	code.visualstudio.com/docs
Stack Overflow	Community Q&A	stackoverflow.com

📝 Pre-Workshop Checklist

✅ Use this checklist to verify your setup before the workshop begins

🔧 Essential Setup Verification

✅ Item	🎯 Verification Command	📖 Expected Result
🌐 Internet Access	Open `github.com` in browser	GitHub homepage loads
👤 GitHub Account	Sign in to GitHub	Profile page accessible
🤖 Copilot Access	Visit `github.com/settings/copilot`	Shows active subscription
💻 VS Code	Run `code --version`	Version number displays
🧩 Copilot Extension	Check VS Code status bar	Copilot icon visible
☕ Java (if chosen)	Run `java -version`	Java 17+ version shown
🔷 .NET (if chosen)	Run `dotnet --version`	.NET 8+ version shown
🌐 Git	Run `git --version`	Git version 2.x+ shown

🧪 Quick Test

Create this simple test to verify everything works:

📄 Create test file: Test.java or Test.cs
✍️ Type comment: // Create a hello world method
👀 Watch for: Gray AI suggestion appears
✅ Accept suggestion: Press Tab to accept
🚀 Compile & run: Verify code works

🎉 If all items pass, you're ready for the workshop!

🏆 Advanced Troubleshooting

🔧 VS Code Advanced Diagnostics

# Enable verbose logging for GitHub Copilot
# Add to VS Code settings.json:
{
    "github.copilot.advanced": {
        "debug.overrideEngine": true,
        "debug.testOverrideProxyUrl": "",
        "debug.showScores": true
    }
}

# View Copilot logs
# Ctrl+Shift+P → "Developer: Show Logs" → "GitHub Copilot"

🐛 System Diagnostics

# Check system resources
# Windows
tasklist | findstr "Code"
wmic process where name="Code.exe" get PageFileUsage,WorkingSetSize

# Mac/Linux  
ps aux | grep -i code
top -p $(pgrep code)

# Check disk space (VS Code needs ~500MB free)
# Windows: dir C:\ 
# Mac/Linux: df -h

📊 Advanced Troubleshooting Metrics

🎯 Resolution Success Indicators

🏆 Troubleshooting Performance Matrix

🎯 Metric	🔰 Beginner	🥈 Intermediate	🥇 Expert	📊 Enterprise
Issue Identification Time	< 5 min	< 3 min	< 1 min	< 30 sec
Resolution Success Rate	80%	90%	95%	98%
Escalation Frequency	30%	15%	5%	2%
Documentation Usage	High	Medium	Low	Automated

✅ Troubleshooting Mastery Checklist

🛠️ Technical Proficiency:

Can diagnose GitHub Copilot issues independently
Resolves development environment problems systematically
Implements enterprise-level security compliance
Uses automated diagnostic tools effectively

🚀 Advanced Capabilities:

Designs multi-agent troubleshooting workflows
Optimizes AI performance at enterprise scale
Creates custom diagnostic automation scripts
Leads troubleshooting for distributed teams

📈 Continuous Improvement Framework

graph LR
    A[🔍 Issue Detection] --> B[📊 Data Collection]
    B --> C[🧠 Root Cause Analysis]
    C --> D[🛠️ Solution Implementation]
    D --> E[📈 Performance Monitoring]
    E --> F[📚 Knowledge Base Update]
    F --> A
    
    style A fill:#ffebee
    style D fill:#e8f5e8
    style F fill:#e3f2fd

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🚀 Automation Resources Mastery

Enterprise-Level Resource Utilization:

Infrastructure Automation: setup-azure-infrastructure.sh | cleanup-azure-infrastructure.sh
Validation Scripts: validate-setup.sh
CI/CD Integration: github-actions-workflow.yml | azure-devops-pipeline.yml
Multi-Agent Systems: multi_agent_orchestrator.py
Configuration Management: application.properties | appsettings.json

🧭 Navigation

Previous	Up	Next
⬅️ Module 2: Complete Workshop	📖 Main README	➡️ Module 4: Workshop Structure

Workshop Progress: Module 3 of 6 • Estimated Time: As needed • Success Rate: 95%+

Quick Links: 🚀 Module 1: Introduction | 📚 Module 2: Workshop | 🏗️ Module 4: Structure | 📖 Module 0: Quick Start

🎯 Advanced Troubleshooting Complete: Enterprise-grade diagnostics and automation-driven problem resolution for AI-powered development challenges. Most issues resolve within minutes using our systematic methodology and resource automation.

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🆘 Advanced AI-Powered Development Troubleshooting Guide

🤖 Module 3: Comprehensive Problem Resolution Framework

🔍 Advanced Diagnostic Methodology

📋 Comprehensive Issue Matrix

🛠️ Infrastructure Setup Issues

🤖 Automated Setup Verification

🤖 AI Tool Integration Issues

❌ Issue: "I can't see GitHub Copilot suggestions"

❌ Issue: "GitHub Copilot trial expired"

🔧 Development Environment Issues

❌ Issue: Visual Studio Code not starting or crashing

❌ Issue: Java Development Kit (JDK) problems

❌ Issue: .NET SDK problems

🤖 GitHub Copilot Specific Issues

🔧 Copilot Extension Problems

❌ Issue: Gray suggestions not appearing

❌ Issue: Suggestions are irrelevant or poor quality

🧪 Workshop Exercise Problems

🔧 Code Compilation Issues

❌ Issue: Java compilation errors

❌ Issue: C# compilation errors

🚀 Performance Exercise Issues

❌ Issue: Performance tests showing unexpected results

🔒 Security Exercise Issues

🛡️ SQL Injection Exercise Problems

❌ Issue: Database connection errors

🌐 Network & Connectivity Issues

🔒 Corporate Firewall Issues

❌ Issue: GitHub Copilot blocked by corporate firewall

🔄 Proxy Configuration

❌ Issue: Proxy blocking GitHub connections

🏢 Enterprise Scenario Issues

🏗️ Multi-Agent Architecture Problems

❌ Issue: Multi-agent orchestration failures

🔒 Enterprise Security & Compliance

❌ Issue: Corporate security policy violations

🚀 Performance Optimization at Scale

❌ Issue: AI performance degradation in enterprise environments

🚨 Emergency Contact Information

📞 Getting Help During Workshop

🔗 External Support Resources

📝 Pre-Workshop Checklist

🔧 Essential Setup Verification

🧪 Quick Test

🏆 Advanced Troubleshooting

🔧 VS Code Advanced Diagnostics

🐛 System Diagnostics

📊 Advanced Troubleshooting Metrics

🎯 Resolution Success Indicators

🏆 Troubleshooting Performance Matrix

✅ Troubleshooting Mastery Checklist

📈 Continuous Improvement Framework

🚀 Automation Resources Mastery

🧭 Navigation