}

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golang go error compile import goimports

Go error: "imported and not used" — Fix Unused Import Compile Error

Fix the Go compiler error "imported and not used". Learn why Go enforces this rule and the 4 ways to resolve it: remove the import, use it, blank import, or goimports.

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golang go error compile undefined import

Fix 'undefined: functionName' Error in Go (2026)

Fix the Go 'undefined: functionName' compile error. Covers wrong package, unexported names, typos, missing imports, and circular imports with before/after code.

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python error ModuleNotFoundError pip import virtualenv venv

Fix Python ModuleNotFoundError: No module named 'X' (2026)

Fix Python ModuleNotFoundError: No module named 'X'. Covers pip install, wrong Python version, venv not activated, sys.path debugging, and import name differences.

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javascript file import include

How to include a JavaScript file in another JavaScript file?

In most programming lenguages is very common to include functions or classes from another file. In javascript seems to be different while handling includes, here we review how to do require or import files with javascript.