Software troubleshooting desk

Practical fixes for tool errors, setup blocks, and workflow issues.

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix 'Port Already Allocated' Error in Docker Compose on Windows

You try to run docker compose up and get an error like "port is already allo...

Fix Nginx 'Permission Denied' Upstream Errors
When Nginx logs permission denied while connecting to an upstream (e.g., a Unix sock...

Fix pnpm ERR_PNPM_OUTDATED_LOCKFILE Lockfile Error
When running pnpm install or pnpm update, you may see:
ER...

Fix Windows Update Service Not Running After Clean Boot If you performed a clean boot to troubleshoot an issue and later found that Windows Update won...

Fix Git Push Rejected Non Fast Forward Rebase Error If you see ! [rejected] and non-fast-forward after a rebase, it means y...

Fix Nginx 502 Bad Gateway with Docker Socket You have an Nginx container proxying requests to another container via the Docker socket, and you...

Issue queue Sitemap Git Merge --allow-unrelated-histories vs Rebase Guide Troubleshooting Chrome Sync with Multiple Profiles Resolve ERR_CONNECTION_RESET by Resetting Proxy Settings Stuck at 99% Windows 11 Installation Assistant Solution How to Force Enable Windows Defender Real-Time Protection Fix Missing Environment Variables in Docker Build Troubleshooting Error 0x80070080 in Windows Update npm run build: Cannot Find Module Fix Resolve 'Permission denied' for Python pip User Install How to Generate package.json with npm init Resolve DNS Issues Causing No Internet on Windows 11 Firefox Secure Connection Failed: Date and Time Fix Desk note Troubleshooting paths Home Windows FixesmacOS HelpBrowser IssuesOffice ToolsDeveloper ToolsCloud SoftwareSecurity ToolsBackup RecoveryNetwork ToolsDatabase ToolsAI ToolsProductivity AppsCLI ErrorsDocker KubernetesEmail ClientsFile Utilities