Fix TypeScript compilation errors that block builds
TypeScript build errors prevent your project from compiling. These range from missing declarations and incompatible lib versions to misconfigured tsconfig settings that reject valid code.
Error messages you might see
error TS2307: Cannot find module 'module-name' or its corresponding type declarations.error TS18046: 'variable' is of type 'unknown'.Why this happens in AI-generated code
Missing type declarations for dependencies
AI-generated imports reference packages that ship without TypeScript types and lack a corresponding @types package, causing module resolution failures.
Incompatible tsconfig compiler options
AI tools suggest tsconfig changes (moduleResolution, target, jsx) that conflict with your framework's requirements, breaking compilation of otherwise valid code.
Strict mode catching AI-generated loose code
Enabling strict: true reveals errors in AI-generated code that was written assuming lenient compiler settings — implicit any, unchecked nulls, and missing return types.
How to fix it
Install missing type declarations
Run `npm install -D @types/package-name` for packages without built-in types. If no @types package exists, create a declaration file (d.ts) with `declare module 'package-name'`.
Use your framework's recommended tsconfig
Start from your framework's base tsconfig (Next.js, Remix, etc.) and only override what you need. Avoid changing moduleResolution, target, or jsx unless you understand the implications.
Get professional help
Still stuck? Our engineers can fix your TypeScript configuration and resolve build errors. Visit /products to get started.
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Frequently asked questions
Should I use skipLibCheck to fix type errors in node_modules?
skipLibCheck: true is a reasonable pragmatic choice — it skips type checking of declaration files in node_modules, which you can't control anyway. Most framework templates include it by default.
How do I handle packages without TypeScript types?
First, check for @types packages on npm. If none exist, create a declarations.d.ts file in your project with `declare module 'untyped-package'`. This gives it 'any' type, which you can refine later.
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