All Errors

This error occurs when using __dirname in ES modules (ESM), where CommonJS globals like __dirname are not available. Use import.meta.url with Node.js utilities to replicate __dirname functionality.

This TypeScript error occurs when the compiler cannot infer a variable's type and falls back to "any". It typically happens with the noImplicitAny flag enabled when variables lack explicit type annotations in complex control flow scenarios.

This error occurs when TypeScript cannot infer the type of an array, typically when initializing an empty array without type annotations while noImplicitAny is enabled. Fix it by adding explicit type annotations to your array declarations.

This TypeScript error occurs when using namespace imports (import * as) with modules that lack proper export structure. Enable esModuleInterop or switch to named imports to resolve.

This error occurs when the TypeScript version used by your IDE, build tools, or framework differs from the version installed in your project, causing compilation failures or inconsistent type checking.

This TypeScript error occurs when you try to provide a default value for a constructor parameter that has a visibility modifier (public, private, protected) or readonly modifier. TypeScript parameter properties cannot have default values in the constructor parameter list. The solution is to either remove the default value and initialize the property in the constructor body, or remove the visibility modifier and use a regular parameter with a default value.

This TypeScript error occurs when you define a function with optional parameters followed by required parameters, which violates TypeScript's parameter ordering rules. Optional parameters must come after all required parameters in a function signature. The error helps maintain consistent and predictable function signatures throughout your codebase.

gRPC or HTTP/2 services fail when pods refuse connections on the expected port. Network policies, service configuration, or application setup blocks HTTP/2 traffic.

This error occurs when attempting to use React Context API (createContext) directly in a Next.js Server Component. Context relies on client-side runtime and cannot be used in components that render on the server.

This error occurs when Prisma's connection pool is exhausted and cannot serve a query within the timeout period. It's most common in serverless environments, high-concurrency scenarios, or when running many parallel queries with insufficient connection limits.

This error occurs when using incorrect subscript syntax to access JSON or JSONB data in PostgreSQL. The subscript must be an integer for arrays or a string for objects, and the data type must match the operation.

This error occurs when an EventEmitter instance emits an "error" event but no listener is registered to handle it. Node.js will throw an unhandled error, crashing the process, because error events have special handling requirements in the EventEmitter API.

This error occurs when multiple cluster workers attempt to bind to the same port incorrectly, or when a worker tries to reopen a listener on a port it previously closed, causing EADDRINUSE conflicts in the cluster environment.

SQLSTATE 55P04 occurs when PostgreSQL detects unsafe usage of a newly added enum value in a transaction that started before the enum was altered. This prevents data corruption by ensuring transactions see consistent enum definitions.

This error occurs when a DNS server fails to complete a hostname lookup in Node.js. It typically indicates DNS server configuration issues, DNSSEC validation failures, or network connectivity problems between your application and the DNS resolver.

PostgreSQL enforces unique keys in JSON objects, especially with jsonb and PostgreSQL 15+ SQL/JSON functions. This error occurs when you try to create or construct a JSON object with duplicate keys. Ensure all keys in your JSON objects are unique.

This error occurs when JavaScript tries to call an async function that hasn't been properly defined or declared. Most commonly, it's caused by missing semicolons between statements, where the parser misinterprets code structure.

React surfaces this error when a component tries to read a prop key that was never passed, which usually means a parent rendered the component with the wrong prop name or the child assumes data that does not exist.

React warns with this message when you pass an array of JSX elements (for example via props.children or an items prop) to another component without giving each element a stable key. React uses the keys to match up elements across renders, so the warning signals that the list you handed off lacks identity.

React throws this warning when you attach a ref object or callback to a function component because the component does not expose an instance for React to assign the ref. The runtime is protecting you from leaking a DOM node reference into a place that cannot safely receive it.