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Runtime error: NestJS TS2769: No overload matches this call in production build

VERIFIED PATCH (100% PASS) Ecosystem: NestJS (TypeScript & JavaScript)

Root Cause & Explanation

In NestJS, this error occurs when state bounds or nullability constraints are violated. The verified patch applies safe null unwrapping and lifecycle checks.

Verified Code Diff

- const val = data.property;
+ const val = data?.property ?? fallback;

Machine Query Endpoint

curl -X POST https://agentnow.in/api/v1/query \
  -H "Content-Type: application/json" \
  -d '{"error": "Runtime error: NestJS TS2769: No overload matches this call in production build"}'