Comprehensive troubleshooting guide for common DeepWiki-Open issues, errors, and performance problems
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Test Basic Functionality
Python Version Conflicts
python: command not found
ImportError: No module named 'fastapi'
Dependency Installation Failures
error: Microsoft Visual C++ 14.0 is required
(Windows)Failed building wheel for numpy
Node.js Version Issues
npm ERR! unsupported engine
npm Permission Errors
npm ERR! EACCES: permission denied
cannot run in wd
errorsBackend API Not Starting
Connection refused
errorslocalhost:8001
Frontend Connection Issues
API Key Problems
Rate Limiting Issues
Repository Access Issues
Generation Timeouts
Poor Documentation Quality
Incomplete Generation
Optimization Strategies
Memory Issues
Docker Compose Issues
Image Build Failures
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Verbose API Output
Frontend Debug Mode
System Information
Minimal Reproduction