Practical software fixes, setup guides, and tool workflows.

Clear technical guides for everyday software errors, configuration problems, and productivity tools.

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Troubleshooting

Fixing Git Authentication Failed in VS Code

If you see "git authentication failed" when pulling, pushing, or cloning in VS Code, the ...

Troubleshooting

Fix VSCode Git Auth Failed: Expired Token

You're working in Visual Studio Code, try to push or pull, and see an error like "Git: Au...

Troubleshooting

How to Fix Git Index Lock File Exists Error

If you see an error like fatal: Unable to create 'path/to/repo/.git/index.lock': Fi...


                    
                    
                        
                            
                            
                                Troubleshooting
                                How to Configure pnpm Store Path (and Fix Common Issues)
                                
If you use pnpm, you may run into disk space warnings, permission errors, or duplicate packages. ...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                How to Fix Nginx Upstream Connection Refused on Port 80
                                
When nginx logs show "upstream connection refused" while connecting to port 80, it means ...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix Nginx 502 Bad Gateway with Docker Environment Variables
                                
If you see a 502 Bad Gateway from nginx running in Docker, it usually means ngin...



        
            
                
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                    Support Note
                     Test fixes in a non-critical profile first, keep backups for configuration files, and record exact error messages before changing settings.