FileNotFoundError

Common Causes

• Wrong path or filename
• File not yet created
• Working directory different from expected
• Path uses wrong separators

Fixes

1. 1. Use pathlib for cross-platform paths

   from pathlib import Path
   p = Path('dir') / 'file.txt'

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2. 2. Check before opening

   if Path(path).exists():
       with open(path) as f: ...

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3. 3. Use absolute path

   path = Path(__file__).parent / 'data.json'

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Still not fixed?

• • Search the exact error message on Stack Overflow or GitHub Issues
• • Check the official docs for the language or tool
• • Ensure your versions (Node, Python, npm, Docker) are up to date
• • Try in a minimal reproduction (new project, single file)

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