All Errors

This ESLint warning occurs when your useMemo hook references variables, props, or state that are not included in its dependency array. When dependencies are missing, your memoized value won't recalculate when those values change, leading to stale calculations and performance issues.

This React warning occurs when a useState hook that was previously called unconditionally is now being called inside a conditional statement, loop, or after an early return. React requires hooks to be called in the exact same order on every render to maintain state consistency.

This ESLint warning occurs when a variable or function used inside useRef is not listed in its dependency array. The react-hooks/exhaustive-deps rule enforces complete dependency tracking to prevent stale closures and ensure refs update when their dependencies change.

This React error occurs when a useReducer reducer function fails to return a proper state object, often due to missing return statements, unhandled action types, or returning undefined. The reducer must be a pure function that always returns a valid next state for every possible action. Understanding common patterns and debugging techniques helps prevent this state management issue.

The "useRef: the value returned should be a valid value or reference" error occurs when React's useRef hook is used incorrectly, typically when trying to access or modify the ref.current property during rendering, passing invalid values to useRef, or using refs in ways that violate React's rendering rules.

This error occurs when a user lacks the required CONNECT privilege to access a PostgreSQL database. Grant the missing privileges using GRANT CONNECT or GRANT ALL PRIVILEGES to restore access.

This TypeScript error occurs when you try to use incremental compilation features without enabling the required configuration options. It typically happens when using TypeScript's project references or build mode without proper tsconfig.json settings for incremental builds, preventing faster compilation through cached results.

This TypeScript configuration error occurs when you set jsx: 'preserve' with module: 'es2015' or similar ES module targets. The preserve mode keeps JSX syntax in output files, which conflicts with ES module syntax requirements. Fix by changing either the jsx or module option to compatible values.

This TypeScript error occurs when you define a tuple type with a rest element followed by an optional element, which violates TypeScript's tuple syntax rules. The fix involves reordering tuple elements so optional elements come before rest elements, or restructuring your type definition.

This TypeScript error occurs when you try to create a mapped type where the constraint references a type parameter that isn't available in that scope. The fix involves restructuring your type definitions to ensure constraints only reference accessible type parameters or using conditional types instead.

This error occurs when SSH clients exceed the server's maximum authentication attempts limit (default: 6). It's a security mechanism to prevent brute-force attacks. Resolve it by specifying the correct key, reducing failed attempts, or increasing MaxAuthTries on the server.

This error occurs when the redis-py client encounters a socket exception while reading data from the Redis server. It typically happens due to connection resets, server-side connection closures, or network issues.

This TypeScript error occurs when a derived class attempts to override a method from its base class with an incompatible signature. The method in the derived class must be assignable to the base class method, meaning it should have compatible parameter types and return type. Fixing this involves ensuring method signatures match or using appropriate type annotations.

This error occurs when a Redis cluster becomes unavailable due to node failures or missing hash slot coverage. The cluster stops accepting requests until all hash slots are covered again by available nodes.

This TypeScript error occurs when a method decorator returns an invalid type. Method decorators must either return void (for side effects) or a PropertyDescriptor to replace the original method. The error helps ensure type safety and proper runtime behavior of decorated methods.

This TypeScript compilation error occurs when upgrading RTK Query to version 2.4.0 or later, where internal type definitions for tag descriptions cause compatibility issues even when not using tags in your API definitions.

This error occurs when a MySQL window function frame specification uses UNBOUNDED PRECEDING as the frame end boundary. Window frames must follow logical ordering where the frame start cannot occur later than the frame end in the dataset.

This error occurs when Elasticsearch encounters a document with fields not defined in the index mapping, and the mapping is configured with "dynamic": "strict". Elasticsearch rejects the document to prevent schema drift and ensure data consistency. The fix involves updating your mapping to allow dynamic fields or explicitly defining all expected fields.

Redis returned 'ERR unknown command' when you tried to execute a Redis command. This error means the server doesn't recognize the command you sent, usually due to a typo, version mismatch, connecting to the wrong Redis instance, or missing Redis modules.

This error occurs when attempting to link an OAuth identity to an existing user via linkIdentity() while the manual linking feature is disabled in your Supabase project settings. Manual linking must be explicitly enabled for security reasons.