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Latest Troubleshooting Guides

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Troubleshooting

Fix Jupyter Kernel Not Starting on Windows 10

When you launch a Jupyter notebook and the kernel never starts—or shows a 'Kernel error' or 'Conn...

Troubleshooting

Fixing Docker Compose 'env file not found' Error

When running docker compose up, you might see an error like env file not found...


                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix 'Port Already in Use' Error in Windows Terminal PowerShell
                                
When you try to start a local server in Windows Terminal PowerShell and see port already in...

                            

                        
                    

                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix Windows Update Invalid Configuration Error on Windows 10
                                
You may see a 'Windows Update invalid configuration' error when trying to check for or install up...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix Windows Search Port 80 Already in Use Error
                                
You’re trying to start Windows Search or an indexing service, and you see an error like “Port 80 ...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                How to Fix a 502 Bad Gateway in Chrome by Clearing Cache
                                
If you see a 502 Bad Gateway error in Chrome, it usually means the server you're...



        
            
                
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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.