All Errors

This warning appears when a React component renders a large number of DOM elements, indicating complexity that could impact performance and maintainability. While React doesn't enforce a hard element limit, components with hundreds of elements suggest the need for decomposition into smaller, focused units.

This error occurs when attempting to use the useTransition hook in a React application that either doesn't have React 18+ installed, isn't using concurrent rendering, or is using an incompatible build bundle that lacks concurrent features. The issue typically arises from version mismatches, incorrect rendering APIs, or bundler configuration problems.

This TypeScript configuration error occurs when esModuleInterop or allowSyntheticDefaultImports are enabled without specifying a moduleResolution strategy. The fix is to add moduleResolution to your tsconfig.json, typically set to 'node', 'node16', or 'bundler' depending on your build environment.

This error occurs when you're using type-aware ESLint rules from @typescript-eslint but haven't configured the parser to provide type information. The fix involves configuring parserOptions with either projectService or project in your ESLint configuration file.

The isPending flag in React 18's useTransition hook can appear stuck or fail to update correctly when state changes occur during transitions. This happens when actions don't properly report their completion status, when state updates aren't wrapped in startTransition, or when asynchronous operations lack proper error handling.

This error occurs when @typescript-eslint/parser cannot locate or initialize the TypeScript language service, typically due to misconfigured parserOptions.project settings, missing tsconfig.json files, or files not included in your TypeScript project configuration. The fix usually involves correctly configuring the project path or updating your tsconfig.json include patterns.

This error occurs when a Node.js application attempts to write to a file or directory on a read-only filesystem. Common in containerized environments, serverless platforms, and systems with intentionally read-only root filesystems.

This TypeScript error occurs when you call a function without providing any arguments, but the function requires at least one parameter. TypeScript enforces that all required parameters must be provided when calling a function to prevent runtime errors.

This TypeScript error occurs when calling a function that requires 2-3 arguments but you only provide 1. The fix involves either providing all required arguments, making some parameters optional in the function signature, or providing default values for missing arguments.

This TypeScript warning appears when you use decorators without enabling the experimentalDecorators compiler option. The fix is to add 'experimentalDecorators: true' to your tsconfig.json compilerOptions.

This TypeScript error occurs when you try to use the 'new' operator on a value that doesn't have a construct signature. This typically happens with incorrect imports, type vs instance confusion, or attempting to instantiate abstract classes, interfaces, or type aliases.

This TypeScript error occurs when you attempt to export the same symbol name multiple times from a module, or when using re-export statements in module augmentation. The fix involves using direct export declarations instead of re-export syntax, or renaming conflicting exports.

This error occurs when importing from an ES module that doesn't export the requested name. It commonly happens when trying to use a default import on a module that only has named exports, or when mixing ESM and CommonJS module systems.

Supabase Realtime channel subscription fails due to authentication, permissions, replication settings, or RLS policy misconfigurations. This error occurs when the client cannot establish a successful subscription to monitor real-time database changes or broadcast messages.

This TypeScript error occurs when you attempt to invoke a value that doesn't have a call signature—essentially trying to call something that isn't a function. Common causes include calling non-function types, incorrect imports, type mismatches, and union types that confuse the compiler.

This warning appears when more than 10 event listeners are attached to a single EventEmitter instance, indicating a potential memory leak from listeners not being properly cleaned up.

This error occurs when an asynchronous operation exceeds its configured time limit without completing. Common in network requests, database queries, and long-running async operations.

This TypeScript error occurs when you try to assign a value to a variable or array that TypeScript has inferred as the 'never' type. This commonly happens with empty arrays, exhaustive type narrowing, or incorrect type annotations. The fix involves providing explicit type annotations or adjusting your code logic.

This TypeScript error (TS4023) occurs when generating declaration files and the compiler cannot properly reference types from external modules in your exported variables. It happens when you export a variable whose inferred type uses types from external modules that cannot be explicitly named in the generated .d.ts file.

This TypeScript error occurs when you attempt to use an invalid expression or operation within a template literal type definition. Template literal types only allow specific type-level constructs like type parameters, unions, and intrinsic string manipulation types, not runtime expressions or complex type operations.