TypeScript
TypeScript reported a value that is declared but never read
error TS6133: 'X' is declared but its value is never read.
TypeScript found a local variable, import, or parameter that is declared but not actually used under the current compiler settings.
Observed message
error TS6133: 'X' is declared but its value is never read.
Why it happens
- A variable, import, or parameter is no longer used after a refactor.
- The project enables unused-value checks like noUnusedLocals.
- Placeholder code or incomplete implementation left dead declarations behind.
How to fix it
- Remove the unused declaration if it is no longer needed.
- Use the value intentionally if it should remain part of the code path.
- Review unused-value compiler settings only if the project intentionally allows dead declarations.
