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E0022: invalid UTF-8 sequence

JavaScript files are normally encoded using UTF-8. It is an error for a UTF-8 JavaScript file to contain bytes which are not valid UTF-8.

quick-lint-js only supports UTF-8 JavaScript files. UTF-16, ISO-8859-1, and other encodings are not supported by quick-lint-js. Save your file as UTF-8 to check it with quick-lint-js.

Introduced in quick-lint-js version 0.2.0.

Documentation for other errors