Fix: TypeScript Type 'X | undefined' is not assignable to type 'X'
How to fix TypeScript strict null checks error Type X undefined is not assignable caused by optional values, nullable types, missing guards, and strictNullChecks.
All Articles
836 articles — Page 62 of 70
Fix: Vite server connection lost / HMR not working
How to fix the '[vite] server connection lost. Polling for restart...' error and HMR not working. Covers file watcher limits, WebSocket config, Docker polling, WSL2, proxy forwarding, SSL issues, firewall blocking, and dependency pre-bundling.
Fix: Error: error:0308010C:digital envelope routines::unsupported
How to fix the Node.js digital envelope routines unsupported error caused by OpenSSL 3.0 changes in Node.js 17+, with solutions for webpack, Vite, React, and Angular.
Fix: Yarn error Integrity check failed / EINTEGRITY sha512
How to fix Yarn integrity check failed and EINTEGRITY sha512 errors caused by corrupted cache, lock file mismatches, registry issues, and network problems.
Fix: Python RecursionError - maximum recursion depth exceeded
Resolve Python's RecursionError by converting recursion to iteration, increasing the recursion limit, fixing infinite loops, and using tail-call optimization patterns.
Fix: Git LFS Smudge Filter Error
Resolve Git LFS smudge filter errors by installing Git LFS, fixing credentials, resetting LFS hooks, and handling bandwidth or storage quota issues.
Fix: npm ERR! cb() never called
Resolve npm's cb() never called error by clearing cache, fixing network issues, updating npm, and resolving corrupted package-lock.json files.
Fix: Apache 500 Internal Server Error
Resolve Apache's 500 Internal Server Error by checking error logs, fixing .htaccess rules, correcting file permissions, and debugging PHP/CGI configuration.
Fix: Ruby LoadError - cannot load such file
Resolve Ruby's LoadError by checking gem installation, fixing load paths, verifying Bundler setup, and ensuring correct require statements.
Fix: systemctl Service Failed to Start – Unit Entered Failed State
How to fix systemd service failures including 'unit entered failed state', 'Main process exited with code', and 'start request repeated too quickly' using journalctl and service configuration.
Fix: Flutter Build Failed – Gradle, CocoaPods, or Dart Compilation Errors
How to fix Flutter build failures including Gradle errors on Android, CocoaPods issues on iOS, Dart compilation errors, and version mismatch problems.
Fix: pytest fixture Not Found – ERRORS or 'fixture not found' in Test Collection
How to fix pytest errors like 'fixture not found', 'ERRORS collecting test', or 'no tests ran' caused by missing conftest.py, wrong scope, or import issues.