TypeScript
Could not find a declaration file for module
Could not find a declaration file for module '{0}'.TypeScript resolved the imported module at runtime but could not find type declarations for it.
Error AtlasError Documentation and ResolutionObserved message
Could not find a declaration file for module '{0}'.Why it happens
- A JavaScript package is installed without bundled TypeScript type declarations.
- The matching @types package is missing.
- Custom module typings exist but are not included in the project's TypeScript configuration.
How to fix it
- Install the appropriate @types package when one exists.
- Create a local declaration file for the module if no published typings are available.
- Check tsconfig include, typeRoots, and module resolution settings so custom typings are discovered.
Official reference
TypeScript Handbook: Type DeclarationsRelated errors
Explore more